log Handbook

COMPUTALOGWellbore knowledge and solutions

COMPUTALOG™COMMANDER™

Motor

Handbook

2nd Edition

March 2001

13985 MOTOR Handbook.QXD 3/12/01 2:59 PM Page A

Computalog Commander™ Motor Handbook

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DISCLAIMER

The Computalog Commander™ Motor Handbook isintended to be a reference of Computalog Commander™

drilling motor specifications and operation. ComputalogLtd. is continuously looking at ways to improve the per-formance of their drilling motors, therefore these specifi-cations are subject to change without notice. If there areany concerns or questions about the information in thishandbook, please contact your Computalog Com-mander™ drilling motor representative for assistance.

The drilling motors described in this handbook wereavailable at time of publication. Not all configurationsare necessarily available off-the-shelf but can be suppliedwith sufficient notice.

13985 MOTOR Handbook.QXD 3/12/01 2:59 PM Page D

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CONTENTS

1.0 INTRODUCTION . . . . . . . . . . . . . .5

2.0 MOTOR SELECTION . . . . . . . . . . .6

3.0 COMPONENTS . . . . . . . . . . . . . . .83.1 Dump Sub Assembly ..................................................8

3.2 Power Section.............................................................8

3.3 Drive Assembly ...........................................................9

3.4 Adjustable Assembly................................................10

3.5 Sealed Bearing Section ............................................10

3.6 Kick Pads. ..................................................................10

3.7 Stabilization..............................................................10

4.0 APPLICATIONS . . . . . . . . . . . . . .114.1 Performance Drilling ...............................................11

4.2 Directional Drilling ..................................................11

4.3 Horizontal Drilling / Well Re-entry.........................12

4.4 Air Drilling ...............................................................12

4.5 Motor Performance Under Two Phase Flow..........14

4.6 Specialty Applications .............................................15

5.0 COMPUTALOG COMMANDER™ DRILLING MOTOROPERATION . . . . . . . . . . . . . . . .17

5.1 Assembly Procedure and Surface CheckPrior to Running In Hole.........................................17

5.2 Tripping In Hole.......................................................19

5.3 Drilling......................................................................19

5.4 Reactive Torque .......................................................20

5.5 Drilling Motor Stall..................................................20

5.6 Bit Conditions ..........................................................21

5.7 Rotating The Drilling Motor...................................21

5.8 Tripping Out.............................................................21

5.9 Surface Checks After Running In Hole...................22

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CONTENTS Continued

6.0 DRILLING FLUIDS . . . . . . . . . . . .23

7.0 TEMPERATURE LIMITS . . . . . . . .24

8.0 TROUBLESHOOTINGDOWNHOLE . . . . . . . . . . . . . . . .25

8.1 With Bit Off Bottom ................................................25

8.2 With Bit On Bottom.................................................25

9.0 DRILLING MOTORSPECIFICATIONS . . . . . . . . . . . . .27

Drilling Motor Specification Summary ..............................30

44 mm (1 3/4”) Computalog Commander™ HN1246......34


60 mm (2 3/8”) Computalog Commander™ MN5625.....38

60 mm (2 3/8”) Computalog Commander™ ME5652......40




73 mm (2 7/8”) Computalog Commander™ LN7825.......48





95 mm (3 3/4”) Computalog Commander™ MS5638......58




121 mm (4 3/4”) Computalog Commander™ HN1230....66

121 mm (4 3/4”) Computalog Commander™ MN4535...68

121 mm (4 3/4”) Computalog Commander™ ME4563 ...70

121 mm (4 3/4”) Computalog Commander™ ME5683 ...72

121 mm (4 3/4”) Computalog Commander™ LN7822.....74

121 mm (4 3/4”) Computalog Commander™ LE7838 .....76

121 mm (4 3/4”) Computalog Commander™ LA7820.....78

127 mm (5”) Computalog Commander™ ME6760..........80

159 mm (6 1/4”) Computalog Commander™ HN1240....82


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CONTENTS Continued

9.0 DRILLING MOTORSPECIFICATIONS Continued

159 mm (6 1/4”) Computalog Commander™ MN4543....84

159 mm (6 1/4”) Computalog Commander™ MB4543 ....86

159 mm (6 1/4”) Computalog Commander™ ME4575 ....88

159 mm (6 1/4”) Computalog Commander™ LN7828......90

159 mm (6 1/4”) Computalog Commander™ LB7828......92

159 mm (6 1/4”) Computalog Commander™ LE7848 ......94

171 mm (6 3/4”) Computalog Commander™ HN1240.....96

171 mm (6 3/4”) Computalog Commander™ MN4548....98

171 mm (6 3/4”) Computalog Commander™ ME4570 ..100

171 mm (6 3/4”) Computalog Commander™ LN7830 ...102

171 mm (6 3/4”) Computalog Commander™ LE6754 ....104


171 mm (6 3/4”) Computalog Commander™ LA7820 ...108

203 mm (8”) Computalog Commander™ HN1240.........110

203 mm (8”) Computalog Commander™ MN4536........112

203 mm (8”) Computalog Commander™ ME5650.........114

203 mm (8”) Computalog Commander™ ME4553.........116

203 mm (8”) Computalog Commander™ LN7830..........118

203 mm (8”) Computalog Commander™ LE6740 ..........120

203 mm (8”) Computalog Commander™ LA7820..........122

244 mm (9 5/8”) Computalog Commander™ MN3445..124

244 mm (9 5/8”) Computalog Commander™ MN4540..126

244 mm (9 5/8”) Computalog Commander™ ME3460 ..128

244 mm (9 5/8”) Computalog Commander™ LN5630 ...130


APPENDICES1. Motor Make-up Torques .........................................135

2. Adjustable Instructions - 3° Adjustable..................136

3. Adjustable Instructions - 2° Adjustable..................138

4. Hydraulics Formulae ................................................140

5. Rotor By-pass Nozzle Instructions...........................146

6. Build Rate Reference Data ......................................150

7. Recommended Make-up Torque for RotaryShouldered Drill Collar Connections ......................152

8. Torque Specifications forComputalog Ltd. Mud Pulse MWD Tubulars .........172



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CONTENTS Continued

9. Torque Specifications forComputalog Ltd. ElectromagneticMWD Tubulars . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

10. Drill Collar Weight (Steel) . . . . . . . . . . . . . . . . . . 176

11. API Casing Data with Bit Sizes and Clearances. . 178

12. TFA of Flow Nozzles . . . . . . . . . . . . . . . . . . . . . . 200

13. IADC Roller Bit Dull Grading System . . . . . . . . . 202

14. Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . 204

NOTES . . . . . . . . . . . . . . . . . . . . . . 207

COMPUTALOG LTD.WORLDWIDE LOCATIONS . . . . . . . 212


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1.0 INTRODUCTION

Since it’s inception over twenty-five years ago,Computalog Ltd. has been a leader in various areas of oil-field service technologies. Computalog Ltd.’s DrillingMotor Department has been developing, manufacturing,and servicing down-hole drilling motors for over fifteenyears and is constantly working on new technologies thatwill surpass past performances. ComputalogCommander™ drilling motors have been proven to beextremely reliable with operational experience surpass-ing 65,000 hours per year.

Computalog Ltd.’s professional team applies extensivedrilling experience and technical skill to the design andmaintenance of their high performance drilling motors.Feedback from field operations and extensive perform-ance monitoring in combination with an accurate com-ponent history database allows for optimum engineeringanalysis in all matters of performance. All possible meas-ures including thorough component testing are taken toensure product quality to our customers.

Enclosed are the specifications for the variety of drillingmotors that Computalog Ltd. currently has available.Drilling motor components, operation, applications, per-formance characteristics, and limitations are all discussedthoroughly. Other drilling motor styles will become avail-able over time, expanding on the range of performancecharacteristics of Computalog Commander™ drillingmotors.

In the event that an issue dealing with this equipment hasnot been addressed, or some information is missing,please contact your nearest Computalog Ltd. representa-tive.



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2.0 MOTOR SELECTION

Computalog Commander™ drilling motors are organizedinto three different selections to provide the broad rangeof bit speeds and torque outputs required to satisfy amultitude of drilling applications. These selectionsinclude:

H - High Speed / Low Torque

M - Medium Speed / Medium Torque

L - Low Speed / High Torque

The H style of Computalog Commander™ drilling motorutilizes a 1:2 lobe power section to produce high speedsand low torque outputs. They are popular choices whendrilling with a diamond bit, tri-cone bit drilling in soft for-mations, and directional applications where single shotorientations are being used.

The M style of Computalog Commander™ drilling motortypically utilizes a 4:5 or 5:6 lobe power section to pro-duce medium speeds and medium torque outputs. Theyare commonly used in conventional directional and hori-zontal wells, in diamond bit and coring applications, aswell as sidetracking.

The L style of Computalog Commander™ drilling motortypically uses a 7:8 lobe power section to produce lowspeeds and high torque outputs. They are used in mostdirectional and horizontal wells, medium to hard forma-tion drilling, and PDC bit drilling applications.

In additions to the above, further specifications arerequired as there are several different drilling motorsavailable in each speed range, designed to produceslightly different speed ranges and torque outputs. Inorder to simplify identification of these different styles ofdrilling motors, a second letter is used, indicating the roleof the drilling motor design. These specifications cur-rently include:

A - Air Drilling Motor - The power section has beenspecifically designed to operate with a compressible gassuch as air or nitrogen, but also operates with imcom-pressible fluids. The specifications in this handbook indi-cate the performance of this design of drilling motor withwater. If information of the performance with a com-pressible fluid is required, please contact your nearestComputalog Ltd. representative.

B - Modified Drilling Motor - The bearing section ofthe drilling motor has been modified from a standarddrilling motor to provide slightly different drilling char-acteristics (ie. change bit to bend distance, etc.)


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E - Extended or Performance Drilling Motor - Thepower section of the extended or performance drillingmotor is longer than the power section of the standarddrilling motor, providing greater torque capacity at a sim-ilar output speed range. Build rate capacity of thesestyles of drilling motors is reduced due to increasedlength of the drilling motor.

N - Standard Drilling Motor / Regular Length - Theseare the original Computalog Commander™ I, II and IIIdrilling motors. These drilling motors have standardlength power sections.

S - Short Radius Drilling Motor - The drilling motorhas been specifically designed to perform drilling of shortradius wellbores. The bearing section of the drillingmotor has a reduced bit to bend length, and the powersection is short to allow higher build rates.


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3.0 COMPONENTS

All Computalog Commander™ drilling motors consist offive major assemblies:

1. Dump Sub Assembly,

2. Power Section,

3. Drive Assembly,

4. Adjustable Assembly, and

5. Sealed Bearing Section.

3.1 DUMP SUB ASSEMBLYAs a result of the power section (described below), thedrilling motor will seal off the drill string ID from theannulus. In order to prevent wet trips and pressure prob-lems, a dump sub assembly is utilized. The dump subassembly is a hydraulically actuated valve located at thetop of the drilling motor that allows the drill string to fillwhen running in hole, and drain when tripping out ofhole. When the pumps are engaged, the valve automati-cally closes and directs all drilling fluid flow through themotor.

In the event that the dump sub assembly is not requiredor desired, such as in underbalanced drilling using nitro-gen gas or air, it’s effect can be negated by simply replac-ing the discharge plugs with blank plugs. This allows themotor to be adjusted as necessary, even in the field.Drilling motors 95 mm (3 3/4”) and smaller require thedump sub assembly to be replaced with a special blank sub.

3.2 POWER SECTIONThe Computalog Commander™ drilling motor power sec-tion is an adaptation of the Moineau(1) type positive dis-placement hydraulic pump in a reversed application. Itessentially converts hydraulic power from the drillingfluid into mechanical power to drive the bit.

The power section is comprised of two components; thestator and the rotor. The stator consists of a steel tubethat contains a bonded elastomer insert with a lobed,helical pattern bore through the center. The rotor is alobed, helical steel rod. When the rotor is installed intothe stator, the combination of the helical shapes andlobes form sealed cavities between the two components.When drilling fluid is forced through the power section,the pressure drop across the cavities will cause the rotorto turn inside the stator. This is how the drilling motor ispowered.

It is the pattern of the lobes and the length of the helixthat dictate what output characteristics will be developedby the power section. By the nature of the design, thestator always has one more lobe than the rotor. The illus-trations in Figure 1 show a 1:2 lobe cross-section, a 4:5lobe cross-section and a 7:8 lobe cross-section. Generally,as the lobe ratio is increased, the speed of rotation isdecreased.

(1)Inventor of Progressive Cavity Pump


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The second control on power section output characteris-tics is length. A stage is defined as a full helical rotationof the lobed stator. Therefore, power sections may beclassified in stages. A four stage power section containsone more full rotation to the stator elastomer, whencompared to a three stage. With more stages, the powersection is capable of greater overall pressure differential,which in turn provides more torque to the rotor.

As mentioned above, these two design characteristics canbe used to control the output characteristics of any sizepower section. This allows for the modular design ofComputalog Commander™ drilling motors making it pos-sible to simply replace power sections when different out-put characteristics are required.

In addition, the variation of dimensions and materials willallow for specialized drilling conditions. With increasedtemperatures, or certain drilling fluids, the stator elas-tomer will expand and form a tighter seal onto the rotorand create more of an interference fit, which may resultin stator elastomer damage. Computalog Commander™drilling motors are available when requested with statorsthat take these conditions into account. This will result inminimal loss in performance for ComputalogCommander™ drilling motors used in these specializedconditions.

3.3 DRIVE ASSEMBLYDue to the design nature of the power section, there is aneccentric rotation of the rotor inside of the stator. Tocompensate for this eccentric motion and convert it to apurely concentric rotation, Computalog Commander™drilling motors utilize a high strength jointed driveassembly. The drive assembly consists of a drive shaft witha sealed and lubricated drive joint located at each end.The drive joints are designed to withstand the high

Figure 1: Cross-sections of the most common power sec-tion lobe configurations.


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torque values delivered by the power section while creat-ing minimal stress through the drive assembly compo-nents for extended life and increased reliability. The driveassembly also provides a point in the drive line that willcompensate for the bend in the drilling motor requiredfor directional control.

3.4 ADJUSTABLE ASSEMBLYAll Computalog Commander™ drilling motors are sup-plied with a surface adjustable assembly. The adjustableassembly can be set from zero to three degrees in varyingincrements in the field. This durable design results inwide range of potential build rates used in directional,horizontal and re-entry wells. Also, to minimize the wearto the adjustable components, wear pads are normallylocated directly above and below the adjustable bend.Zero to four degree adjustable assemblies are also avail-able when required.

3.5 SEALED BEARING SECTIONThe bearing section contains the radial and thrust bear-ings and bushings. They transmit the axial and radialloads from the bit to the drill string while providing adrive line that allows the power section to rotate the bit.Computalog Commander™ drilling motors utilize sealed,oil filled, and pressure compensated bearing assembliesto assure extended, reliable operation with minimalwear. As no drilling fluid is used to lubricate the drillingmotor bearings, all fluid can be directed to the bit formaximized hydraulic efficiency. This provides forimproved bottom-hole cleaning, resulting in increasedpenetration rates and longer bit life.

3.6 KICK PADSAll Computalog Commander™ drilling motors incorpo-rate wear pads directly above and below the adjustablebend for improved wear resistance. Eccentric kick padscan also be used on Computalog Commander™ drillingmotors ranging from 121 mm (4 3/4”) to 245 mm (9 5/8”)in size. This kick pad is adjustable to match the low sideof the motor to increase build rate capabilities. It will alsoallow lower adjustable settings for similar build rates,thereby reducing radial stresses applied to the bearingassembly, and permit safer rotation of the motor. Theycan be installed in the field by screwing them onto spe-cially adapted bearing housings.

3.7 STABILIZATIONBearing housings are also available with two stabilizationstyles, integral blade and screw-on. The integral bladestyle is built directly onto the bearing housing and thuscannot be removed in the field. The screw-on style pro-vides the option of installing a threaded stabilizer sleeveonto the drilling motor on the rig floor in a matter ofminutes. The drilling motor has a thread on the bottomend that is covered with a thread protector sleeve whennot required. Both of these styles are optional to a stan-dard slick bearing housing.


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4.0 APPLICATIONS

The versatility and variety of Computalog Commander™drilling motors allows it to be used in several differentdownhole applications. As the variety of designs expand,the applications that Computalog Commander™ drillingmotors can operate in will also grow.

4.1 PERFORMANCE DRILLINGComputalog Commander™ drilling motors can be usedfor performance drilling. The wide variety of torque,speed, and flow rate capabilities of the drilling motorslend themselves easily to a wide range of bit types andformation conditions. Rotary drilling can also be appliedin addition to rotation from the drilling motor forincreased bit speed as required. Power is provided direct-ly at the bit, reducing wear and stress to drill string com-ponents, and increasing component life substantially.

4.2 DIRECTIONAL DRILLINGDirectional drilling began as a remedial operation tosolve a drilling problem; usually a fish or junk left in thehole. Today, with the creation of tighter legal spacingrequirements, better reservoir engineering modeling,and drilling of multiple wells from a single surface loca-tion, it has become very important to both control thewellbore position during drilling and to relate to theposition of existing wellbores to lease boundaries, otherwells, etc.

The most obvious application for directional drilling is fordrilling to areas that are inaccessible to conventional ver-tical drilling techniques. When drilling into reservoirs thatare under mountains, water, cities, or environmentallysensitive areas, wells can be directionally controlled to hitthe required target. When the reservoir is near problem-atic formations (ie. salt formations, steep fault planes,etc.) directional drilling techniques can be used to avoidthem and minimize their effect on drilling and recoveryprocesses.

Another capability with directional drilling is the drillingof multiple wells from a single point. This is valuable inthe case of off-shore drilling rigs which require a signifi-cant investment in time and money. Multiple wells can bedrilled from a single point to various targets for opti-mized recovery, reducing drilling rig time and costs.

Directional drilling can also be used to drill relief wells. Insituations where a well becomes uncontrolled, a reliefwell can be drilled to intersect the original wellbore.Heavy mud can then be pumped down the relief well to“kill” the blowout well.


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4.3 HORIZONTAL DRILLING / WELL RE-ENTRY

Horizontal drilling is the fastest growing branch of direc-tional drilling. In certain reservoirs, recovery can be dra-matically improved by directionally drilling a well hori-zontally (over eighty degrees inclination) for an extendedlength. Greater reservoir exposure allows for higher pro-duction rates at equivalent drawdowns.

In standard horizontal drilling practices, the build sectionof the well is drilled with a larger drilling motor and cas-ing is run to the start of the horizontal section. This cas-ing string insures wellbore integrity as the horizontal sec-tion is drilled. The build section can be drilled in varyingrates from long radius to short radius. The build rate isdependent on the hole conditions, required horizontaldimensions, and well economics.

A smaller drilling motor is then used to drill the horizon-tal component of the well. If the horizontal componentof the well is to be straight, it is recommended that thesmaller drilling motor be set between 1.5 and 1.8 degreesfor the horizontal and then rotated to maintain wellboreinclination. If any adjustments need to be made, thebend in the drilling motor can be used to correct the well-bore trajectory. Higher motor settings have been used todrill with, allowing aggressive turns in the lateral.

An extension of horizontal drilling is the drilling of multi-lateral wells. Multi-lateral wells have more than one hor-izontal wellbore emanating from a single wellbore. Thiscan be in the form of several horizontal wells fanning outradially from a single vertical well. The horizontal wellscan be on the same vertical plane, or be strategicallyplaced at different planes for multiple reservoirs. A sec-ond method is to sidetrack from an existing horizontalwell for penetration into other areas in the reservoir forfurther recovery.

In addition, the above techniques can be used to performwell re-entry. Existing wells are regularly re-entered forfurther recovery from the reservoir. Sidetracking can beperformed from both the build section as well as the hor-izontal section of the existing well to penetrate into areasnot drained with the original well.

4.4 AIR / MISTED DRILLINGCompressible fluids such as air, nitrogen, natural gas, etc.,can be used in combination with a lubricating fluid.Computalog Commander™ drilling motors have beenused extensively in this application.

Advantages of drilling with compressible fluids are thatbetter hole cleaning occurs, increasing penetration ratesand reducing rig time and costs. Lost circulation problemsare eliminated, formation damage is limited, and contin-ual drill stem testing of potential producing formationscan be performed.

When operating Computalog Commander™ drillingmotors with air, extra precautions must be taken to min-imize wear and extend drilling motor life.


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It is recommended that when operating ComputalogCommander™ drilling motors with air, or any other com-pressible fluid, that a lubricating fluid be added to thesystem. As stated earlier, the interference between therotor and the stator creates small cavities along theirlength. As each cavity moves down the length of thepower section from the rotation of the rotor, the cavityvolume remains the same. However, for there to be apressure change in the air as the cavity progresses (whichis required for torque generation), the volume must alsochange. Therefore, as the cavity progresses, the pressurewill drop for torque development, and the volume of theair will increase. This increase in air volume results inblow-by of the power section at the bottom end, whichwill potentially damage the stator.

The purpose of a lubricating fluid is to help lubricate thesurfaces between the rotor and stator of the power sec-tion, as well as provide some cooling assistance to reducethis blow-by damage. As the amount of lubricating fluidis decreased, wear to the rubber will increase, significant-ly reducing the life of the drilling motor.

When operating a Computalog Commander™ drillingmotor with air, care should be taken not let it run freelyat any time. This will cause the rotor to spin at ratesbeyond what it was designed for, wearing it out prema-turely. When starting the drilling motor, some weight onbit should be applied before flow is stabilized at therequired drilling rate. This will provide some resistance tothe rotor in the stator and prevent it from over-running.Similarly, when stopping drilling, some weight on bitshould be maintained until there is no pressure dropacross the drilling motor. Failing to do so will cause pre-mature stator wear, as well as possibly cause an internaljoint to fracture or back-off.

Stalling out the drilling motor can also cause extensivewear quickly to the stator. When stall occurs, the rotorwill seal off with the stator, causing the air pressure insidethe drill string to gradually increase. When the drillingmotor is raised, the seal between the rotor and stator willgive, and the air will pass through. However, since thepressure is higher, and the flow rate has increased beyondthe capacity of the power section, the rotor will spin overallowable limits and the stator will wear out in a shortperiod of time.

When stalling occurs, it is not easily identifiable with apressure increase at surface. As the drilling medium iscompressible, the stall will not be immediately noticed.Therefore, the ROP should be used as a gauge for stalling.If the ROP drops off excessively, it should be considered anindication that the drilling motor has stalled.

Another concern when using a compressible fluid topower a drilling motor is explosive decompression. This isespecially the case for nitrogen gas. When the drillingmotor is being operated downhole, gases permeate intothe rubber components. The amount of gases that per-meate into the rubber are increased by higher pressuresbeing applied, and longer periods of use. However, thisinitial absorption of gases does not affect drilling motorperformance. Once the drilling motor is being pulled outof hole, the pressure on the rubber component is greatly


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decreased, allowing the gases to expand and coalescewithin the rubber. This creates blistering of the rubber,and possibly leads to chunking, affecting the integrity ofthe drilling motor.

In wells where the drilling motor is expected to see pres-sures above 10,000 kPa (1450 psi), explosive decompres-sion is possible when pulling out of hole. To minimize thiseffect, the rate at which the drilling motor is pulled out ofhole should be reduced to allow time for the permeatednitrogen gas to escape from the rubber in the drillingmotor without causing blistering. In wells that may be ofa concern, it is recommended that the drilling motor belaid down after the first run. Once again, it is not thepressure on the drilling motor that causes the explosivedecompression, but rather the rate of pressure drop therubber is exposed to. Downhole, the gas is still com-pressed in the rubber, and does not deform the rubber.Damage does not occur until the pressure on the rubber isdropped dramatically by over 10,000 kPa (1450 psi).

When drilling with air, the dump sub assembly dischargeports must be plugged off. The pressure drop across thedump sub will not be sufficient enough to close it undernormal air flow rates.

It is recommended that prior to air drilling that ourTechnical Services department review the well informa-tion with modeling to provide a suggested combinationof air flow rate and lubricating fluid flow rate. With allcompressible fluids, the performance of ComputalogCommander™ drilling motors vary greatly with small dif-ferences in these two flow rates. To provide optimum lifeand performance characteristics, it is suggested our pro-fessional team assist you with flow rates selection.

4.5 MOTOR PERFORMANCE UNDERTWO PHASE FLOW

Stator performance of positive displacement motors(PDM) used on underbalanced drilling operations is sig-nificantly affected by the flow rate, fluid type and lubri-cation provided by the drilling fluid. Several perform-ance tests have been conducted on drilling motors undertwo phase flow conditions revealing some interestingbehavior. Papers have been published presenting ideason how to choose motors through performance indica-tors or bench testing. These tests and discussions are use-ful in understanding limitations with PDM’s in two phaseflow conditions.

It is important to understand how the performance of aPDM is affected by two phase flow and make smallchanges in operating parameters when trying to improveperformance. The following is a list of points to considerwhen suspected drilling motor problems occur whiledrilling with two phase fluids:

* The higher the gas / liquid ratio (lower liquid rates)the easier it is to stall the motor even though thecombined equivalent flow rate is at maximum motorrating. Slippage or blow-by (onset of stalling) occurssooner and at lower differential pressures in twophase flow than single phase flow.


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* Lower liquid rates may cause poor lubricationresulting in faster wear rates.

* The motor is likely being over run while circulatingthe drill string off bottom.

* When on bottom drilling, an increase in thecombined equivalent flow rate of 10% overmaximum recommended may help reduce stallingproblems.

* Allow the weight on bit to “drill off” before pullingup off bottom.

* Work closely with the operator and underbalanceddrilling engineer, to make small parameter changes

The torque performance curve of PDM’s used in twophase flow does not change significantly except the max-imum predicted differential pressure can not be achievedbefore the motor stalls thereby a lower maximum torqueoutput. The following graph (Figure 2) illustrates the typ-ical performance of a 121mm motor under several flowconditions but with similar equivalent combined flowrates. Note the significant drop in RPM at the samedifferential pressure. This drop in RPM combined withthe reservoir’s production and the degree of underbal-anced achieved (how much below reservoir pressure), canhave a significant affect on the rate of penetration.

Figure 2: RPM versus Differential Pressure in Two-PhaseFlow — 86 mm (3 3/8") ComputalogCommander™ LN7825.


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4.6 SPECIALTY APPLICATIONSComputalog Commander™ drilling motors have alsobeen used to drill conduit holes to accommodatepipelines cable, and other transmission mediums. Theseholes are generally drilled to traverse obstacles in a pro-posed right of way which present problems to conven-tional trenching methods; river crossings, steep or unsta-ble terrain, shore approaches, or environmentally sensi-tive areas.

Extraction of water soluble minerals (ie. salt, potash) canbe attained through solution mining technologies. In thispractice, “paired” wells are drilled to predetermined tar-gets and water is circulated through the holes untilcommunication is established. Water is then forced downone hole and allowed to exit through the other with it’smineral in solution.

Grout holes can be drilled to stabilize unconsolidated for-mations or isolate water bearing formations. Properplacement and control will result in reduced overall costsand greater technical efficiencies for the procedure.

Methane and water drainage holes have been commonin the mining industry for years. Similar techniques arebeing employed in the environmental industry for in situevacuation of toxic contaminants left in industrial andwaste disposal sites.


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5.0 COMPUTALOG COMMANDER™DRILLING MOTOR OPERATION

In order to get the best performance and optimum life ofComputalog Commander™ drilling motors, the followingstandard procedures should be followed during opera-tion. Slight variations may be required with changes indrilling conditions and drilling equipment, but attemptsshould be made to follow these procedures as closely aspossible.

5.1 ASSEMBLY PROCEDURE AND SURFACE CHECK PRIOR TO RUNNING IN HOLE

Although all Computalog Commander™ motors areshipped from the shop thoroughly inspected and tested,some initial checks may be completed prior to running inhole. These surface check procedures should only be usedwith mud drilling systems.

CAUTION: To avoid potential bit, motor, and BOP dam-age, these preliminary checks should be com-pleted without a bit attached. A thread pro-tector should be installed in the bit box when-ever moving the motor, but must be removedbefore flow testing.

1. The correct lift sub must always be installed and usedfor moving the tool on or off the rig floor, and forlifting the tool into position for make-up. Also besure the connection between the lift sub and thedrilling motor is tight. To lift the drilling motor to therig floor, use a tugger line secured around the liftsub. Pick up the Computalog Commander™ drillingmotor with the elevators and set it into the slips ofthe rotary table. Install the dog collar / safety clamps.

NOTE: The lift sub supplied with the drilling motorshould only be used for lifting the drillingmotor. The capacity of the lift sub is restrictedto the weight of the drilling motor and shouldnot be used for any other purpose.

NOTE: Only apply rig tongs on the identified areas ofthe drilling motor. All connections of thedrilling motor are torqued in ComputalogLtd.’s service shop. Further make-up on the rigfloor is not necessary, and if attempted maycause damage.

2. Remove the lift sub and connect the kelly to thedrilling motor, remove the dog collar / safety clamp,and lift the drilling motor out of the slips. Removethe thread protector from the bit box and inspect thethreads for damage.


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3. Lower the drilling motor until the dump sub ports arebelow the rotary table, yet still visible.

CAUTION: The dump sub valve will remain open untilthere is enough fluid pressure to close it.Therefore, the drilling motor should be low-ered until the ports are below the rotarytable. This will prevent the initial flow ofdrilling fluid from spraying on the rig floor.

4. Slowly start the pumps and ensure drilling fluid isflowing out of the dump sub ports. Increase the flowrate until the dump sub ports close, and drilling fluidstops flowing out. Make note of the circulation rateand standpipe pressure.

CAUTION: Do not exceed the maximum recommendedflow rate for this test.

5. Lift the drilling motor until the bit box becomesvisible. It should be rotating at a slow, constantspeed. Listen to the bearing section of the drillingmotor for excessive bearing noise, especially if thetool has been used previously without being serviced.

6. Before stopping the pumps, the drilling motor shouldbe lowered below the rotary table. Ensure thatdrilling fluid flows out of the dump sub ports aftershutting down the pumps. It is possible that thedump sub valve remains closed after this test due toa pressure lock. If this occurs, no drilling fluid willflow out of the ports. To remove the pressure lock,bleed off some stand pipe pressure and the valve willopen.

CAUTION: The surface check should be as short as possi-ble; it is merely to ensure that the drillingmotor is rotating.

7. After this surface check, the bit should be attached tothe motor using a bit-breaker, while holding the bitbox stationary with a rotary tong. Be sure to avoidcontacting the end cap directly above the bit boxwith the tong dies.

CAUTION: It is recommended that you never hold the bitbox stationary and rotate the drilling motorcounter-clockwise, or hold the drilling motorstationary and rotate the bit box clockwise.This could possibly cause the internal drillingmotor connections to back off and damage it.Although rotating in the opposite directionwill result in drilling fluid to be pushed outthe top end, the internal connections will notbe at risk of disconnecting.

8. If the drilling motor has been used previously, anoverall inspection should be completed. Inspect forseal integrity by cleaning the area above the bit boxand visually checking for lubricating oil leakage orseal extrusion. General visual inspection of the entiredrilling motor should be carried out to check formissing oil plugs, housing damage, or looseconnections.

9. Set the adjustable assembly to the desired bend. Theinstructions for this procedure can be found in theappendix of this handbook. A copy is also attached toeach motor before it is sent out from the serviceshop. The torque required on the adjustableassembly is also indicated in the motor specifications.


19

10. If a float sub is used, it should be placed immediatelyabove the drilling motor.

5.2 TRIPPING IN HOLEGenerally, a drill string with a Computalog Commander™drilling motor can be run into the hole like a standardbottom hole assembly. The drilling motor is rugged, butcare should be taken to control travel speed while trip-ping into the hole. The drill string should be tripped withthe blocks unlocked and special care must be taken whenpassing the B.O.P., casing shoe, liner hanger, bridges andnearing bottom. Tight spots should be traversed by start-ing the pumps and slowly reaming the drilling motorthrough. When reaming, the drill string should be peri-odically rotated to prevent sidetracking.

When tripping to extreme depths, or when hole temper-atures are high, periodic stops are recommended tobreak circulation. This prevents bit plugging and aids incooling the drilling motor, preventing high temperaturedamage.

Fluid should not be circulated through a drilling motorinside casing if a PDC or diamond bit is being used, as thismay damage the bit cutters.

If a dump sub assembly is not used and the pipe is notbeing filled while tripping in, the back pressure on thepower section will cause the rotor to turn in reverse. Thiscould cause internal connections of the drilling motor tounscrew.

CAUTION: Stop and break circulation before puttingdrilling motor on-bottom. Failure to do socould plug jets and / or damage the drillingmotor.

5.3 DRILLINGWhen the assembly has been tripped to the bottom ofthe hole, Computalog Commander™ drilling motorsshould be operated in the following manner:

1. With the bit 1-2 meters (3-6 feet) off bottom, startthe pumps and slowly increase the flow rate to thatdesired for drilling. Do not exceed the maximumrated flow rate for the Computalog Commander™

drilling motor.

2. Make a note of the flow rate and the total pumppressure. Note that the pressure may exceed thecalculated off bottom pressure due to some side loadeffects between the bit and the hole diameter.

3. After a short cleaning interval, lower the bit carefullyto bottom and slowly increase the weight. Note thattorque can be affected by a dirty, uncirculated holeand the hole should be adequately cleaned prior toorienting the tool. Fill may be cleaned out of the wellbore by slowly rotating the drilling motor or bystaging the drilling motor full circle 30° to 45° at atime. This prevents ledge buildup and side tracking.


20


4. Orient the drill string as desired and slowly applyfurther weight onto the bit. Pump pressure will riseas the weight on bit is increased. Note the change insystem pressure between the off bottom and onbottom values. This will be the differential pressure.Try to drill with steady pump pressure by keeping asteady flow rate and constant weight on bit.

NOTE: Adding weight on bit will cause both the dif-ferential pressure and torque to increase.Similarly, reducing weight on bit will reduceboth the differential pressure and the torque.Therefore, the rig pressure gauge enables theoperator to monitor how the drilling motor isperforming, as well as a weight on bit indica-tor.

CAUTION: Applying excessive weight on bit may causedamage to the on-bottom thrust bearings.Similarly, applying excessive tension whilestuck may cause damage to the off-bottomthrust bearings. Please refer to the specifica-tions for the recommended maximum loadsfor these conditions.

CAUTION: Do not exceed the maximum recommendeddifferential pressure as listed in the specifica-tions. Failure to do so could result in prema-ture wear or damage to the drilling motor sta-tor.

NOTE: Optimum differential pressure can be deter-mined by monitoring motor performance,penetration rate, and drilling requirements.Also, maintaining a constant weight on bitand differential pressure assists in controllingorientation of the drill string.

5.4 REACTIVE TORQUEA Computalog Commander™ drilling motor drives the bitwith a right-hand (clockwise) rotation. As weight isadded to the bit, reactive torque acting on the drillingmotor housing is developed. This left-hand (counter-clockwise) torque is transferred to the drill string and maycause the joints above the motor to tighten. Reactions ofthis type increase with larger weight on bit values andreach a maximum when the motor stalls. This reactivetorque also affects the orientation of the motor when itis used in directional drilling applications. Therefore, thisreactive torque must be taken into account when orient-ing the drilling motor from the surface in the desireddirection.

5.5 DRILLING MOTOR STALLStalling usually occurs when the application of excessiveweight on bit or hole sloughing stops the bit from rotat-ing and the power section of the drilling motor is notcapable of providing enough torque to power through.This is indicated by a sudden sharp increase in pump pres-sure. This pressure increase is developed because therotor is no longer able to rotate inside the stator, forminga long seal between the two. If circulation is continued,


21

the drilling fluid forces it’s way through the power sec-tion by deflecting the stator rubber. Drilling fluid will stillcirculate through the motor, but the bit will not turn.Operating in this state will erode and possibly chunk thestator in a very short period of time, resulting in extensivedamage. It is very important to avoid this operating con-dition.

When stalling occurs, corrective action must be takenimmediately. Any rotary application should be stoppedand built up drill string torque released. Then the weighton bit can be reduced allowing the drill bit to come looseand the drilling motor to turn freely. If the pump pressureis still high, the pumps should then be turned off. Onceagain, failure to do this will result in the stator erodinguntil the drilling motor is inoperable.

5.6 BIT CONDITIONSThe bit speeds developed when drilling with a drillingmotor are normally higher than in conventional rotarydrilling. This application tends to accelerate bit wear.When drilling with a drilling motor and simultaneouslyrotating the drill string, it is important to avoid lockingup the bit and over running the drilling motor with therotary table. A locked bit will impart a sudden torqueincrease in the drilling motor which can be detected by asudden, sharp increase in standpipe pressure. If thisoccurs, disengage the rotary table and reduce the flowrate. Backlash may occur from reactive torque distributedin the drill string as described in the section above. Failureto react in this situation may cause drilling motor dam-age.

5.7 ROTATING THE DRILLING MOTORFor directional control, it is sometimes necessary to rotatea drilling motor which has the adjustable assembly set fora deviation angle. It has been found that rotating thedrilling motor set at bends greater than 1.83 degrees mayfatigue the housings of the drilling motor to a pointwhere a fatigue crack is initiated, and fracture occurs.Therefore Computalog Ltd. has a policy that drillingmotors set at 1.83 degrees or less may be rotated down-hole with little risk of fatigue. Rotating at an anglegreater than 1.83 degrees is not recommended.

Although fractures from fatigue due to rotating over1.83 degrees are a relatively rare occurrence, a risk is stillbeing taken when it is done. The operator of the drillingmotor must be aware of this risk.

It is also recommended that the speed of rotation notexceed 60 RPM. If this value is exceeded, excessive cyclicloads would occur to the drilling motor housings and pos-sibly cause premature fatigue problems.

5.8 TRIPPING OUTPrior to tripping out when drilling with conventionalmud, it is recommended that the fluid be circulated for at


22


least one “bottoms-up” time to ensure that the well-borehas been cleaned thoroughly.

The tripping out procedures for a ComputalogCommander™ drilling motor are basically the same asthose for tripping in. Taking care when pulling thedrilling motor through tight spots, liner hangers, casing,casing shoes, and the B.O.P. is necessary to minimize pos-sible damage to both the drilling motor and the wellhead components. Rotating may also be done to assistwith the removal of the drill string. The dump sub valvewill allow the drill string to be emptied automaticallywhen tripping.

Although the drill string will drain when tripping out, thedrilling motor itself may not. Once the drilling motor is atsurface, rotating the bit box in a counter-clockwise direc-tion will naturally drain the drilling motor through thetop. This is recommended before laying down aComputalog Commander™ drilling motor since aggres-sive drilling fluids can deteriorate the elastomer statorand seals. Fresh water should also be flushed through toensure thorough cleaning of the drilling motor. Also,clean the bit box area with clean water and install athread protector into the box connection.

NOTE: Rotating the bit box in a clockwise directionwill naturally drain the drilling motor throughthe bottom, but one of the internal connec-tions may break and unscrew. For this reason,it is not recommended to rotate it in this man-ner.

5.9 SURFACE CHECKS AFTER RUNNINGIN HOLE

Before laying down a Computalog Commander™ drillingmotor, it should be inspected in the event that it isrequired again before servicing. Listen for indications ofinternal damage when draining the drilling motor.Inspect the seal area between the bit box and the bear-ing section for lubricating oil leakage, and check theentire drilling motor for loose or missing pressure plugs.If there are any concerns with the drilling motor, it shouldbe laid down for servicing.


23

6.0 DRILLING FLUIDS

The Computalog Commander™ drilling motor isdesigned to operate effectively with practically all typesof drilling fluids. Successful runs have been achieved withfresh or salt water, with oil based fluids, with additives forviscosity control or lost circulation, and with nitrogen gas.However, some consideration should be taken whenselecting a drilling fluid, as elastomer components of thedrilling motor are susceptable to premature wear whenexposed to certain fluids.

Hydrocarbon based drilling fluids can be very harmful toelastomers. A measure of this aggressiveness is called theAniline Point. The Aniline Point is the temperature atwhich equal amounts of the hydrocarbon and anilinebecome miscible. This temperature is an indication of thepercent of light ends (aromatics) present in the hydrocar-bon. It is recommended that the aniline point of anydrilling fluid not be lower than 94.5°C (200°F). Also, it isstrongly recommended that the operating temperatureof the fluid be lower than the aniline point. Operatingoutside these parameters tends to excessively swell elas-tomers and cause premature wear, thus reducing the per-formance of the motor. In cases where hydrocarbonbased fluids are used it is recommended that stators thataccount for the elastomer swelling be used. These specialorder drilling motors may be requested with sufficientnotice. For any information regarding availability ordelivery, please contact your nearest Computalog Ltd.representative.

Drilling fluids with high chloride content can cause sig-nificant damage to internal components. When thesecomponents become damaged, the drilling motor’s per-formance is dramatically reduced.

Lost circulation materials can be used safely withComputalog Commander™ drilling motors but care mustbe taken to add the material slowly to avoid plugging thesystem. The percentage of solids should be kept to a min-imum. Large amounts of abrasive solids in the drillingfluid will dramatically increase the wear on a stator. It isrecommended that the solids content be kept below 5%for an acceptable operational life. Similarly, it is recom-mended that fine abrasives such as sand be kept lowerthan 0.5% as they are extremely damaging to the statorelastomer.

For the above reasons, it is extremely important to flushthe drilling motor with fresh water before laying it down,especially when working with the types of drilling fluidsdescribed above. Failure to do so will allow the drillingfluid to further seriously deteriorate components to thedrilling motor long after it has been operated.


24

7.0 TEMPERATURE LIMITS

The temperature limits of Computalog Commander™drilling motors again depend on the effect of differentfluids and temperatures on the components made ofelastomers. Generally, standard drilling motors are ratedfor temperatures up to 105°C (219°F). At temperaturesabove this, the performance characteristics of elastomersare changed, resulting in reduced life expectancy. Whenexposed to higher temperatures, the elastomers swell,creating more interference than desired, wearing theparts out prematurely. The strength of the elastomers isalso affected.

To compensate for these elastomer changes, specialmaterials and special sizes of components are used. Thisresults in drilling motors that are specifically assembledfor high temperatures. These special order drilling motorsmay be operated in temperatures up to 150°C (300°F) andhigher. They may be requested with sufficient notice. Forany information regarding availability or delivery, pleasecontact your nearest Computalog Ltd. representative.

It should be noted that a Computalog Commander™drilling motor manufactured for hot hole conditions willnot perform as indicated in these specifications in lowertemperatures. The rubber in the stator is specially select-ed for more clearance at higher temperatures to mini-mize interference. Therefore, at lower temperatures, thestator elastomer will not seal adequately on the rotor,and fluid bypass will occur. Therefore, it is important thatthe drilling motor be used in the conditions it is designedfor in order to operate as required.



25

8.0 TROUBLESHOOTING DOWNHOLE

Careful attention to variations in the fluid pressure canidentify many common downhole problems. In manycases, corrective measures may save a costly trip. Beloware listed some symptoms that are sometimes experi-enced when drilling, in conjunction with some of theirpossible causes when dealing with ComputalogCommander™ drilling motors. Also listed are what meas-ures would be taken to correct the problem and continuedrilling.

NOTE: At any time that there are problems incurredwhile drilling, it is strongly suggested that allpossible surface problems are identified andcorrected before assuming the problem isrelated to the downhole equipment. This willminimize any trip time for pulling out thedown-hole equipment unnecessarily.

8.1 WITH BIT OFF BOTTOM1. Circulation pressure is lower than calculated.

A. Dump Sub Valve Stuck Open - Turn flow rate onand off in an attempt to shut the valve. Use vary-ing flow rates. Also, the drill string can bestroked one stand long to help loosen the valve.If unable to close the dump sub valve, it may benecessary to pull out of hole.

B. String Washout - normal drill string washout pro-cedures apply

C. Lost Circulation - normal lost circulation proce-dures apply

2. Circulation pressure is higher than calculated.

A. Drilling Motor or Bit Plugged - This usually coin-cides with little or no circulation. Once allhydraulic systems have been checked and veri-fied, it may be necessary to pull out of hole.

B. Excessive bit side loading due to under gaugehole or high adjustable assembly bend angle -This usually coincides with full circulation. If thedrilling motor is too tight against the wall of thewellbore, the bit may start sidetracking.Corrective measures include drilling a kelly downto reduce side loading or reducing the bendangle on the drilling motor. If sidetracking is aconcern, the drilling motor should be run with alower flow rate to prevent it.

8.2 WITH BIT ON BOTTOM1. Circulation pressure is lower than calculated.

A. Dump Sub Valve Stuck Open - Turn flow rate onand off in an attempt to shut the valve. Use vary-ing flow rates. Also, the drill string can bestroked one stand long to help loosen the valve.If unable to close the dump sub valve, it may benecessary to pull out of hole.

B. String Washout - normal drill string washout pro-cedures apply

C. Lost Circulation - normal lost circulation proce-dures apply


26

D. Worn or Damaged Stator - with certain drillingfluids, stators may wear prematurely, resulting innoticeable weakening over it’s usage. As the sta-tor wears, the speed of the drilling motor will bereduced. Therefore, indications of a worn statorwill be a drop in the ROP, or an increase in thedifferential pressure required to produce thesame ROP.

E. Gas Kick - normal gas kick procedures apply

2. Circulation pressure is higher than calculated.

A. Drilling Motor or Bit Plugged - This usually coin-cides with little or no circulation. Remove theweight on bit, allow the bit to drill off, and thenstop the pumps. If the pressure remains high, it ispossible that the drilling motor or all the bit jetsare plugged. Once all hydraulic systems havebeen checked and verified, it may be necessary topull out of hole.

B. Excessive bit side loading due to under gaugehole or high adjustable assembly bend angle -This usually coincides with full circulation. If thedrilling motor is too tight against the wall of thewellbore, the drilling motor may be working toohard and the torque requirement will be greaterthan the recommended value for the drillingmotor size. Corrective measures include reducingweight on bit or reducing the bend angle in thedrilling motor.

C. Drilling Motor Stalled or Stalling - Usually coin-cides with pressure increase. Rotary applicationshould be stopped and any built up string torqueslowly released. The weight on bit can then bereduced allowing the drill bit to come loose andthe drilling motor to turn freely. If the pumppressure is still high, the pumps should be turnedoff. These steps must be followed in close succes-sion to reduce potential stator damage.

D. Mud Rings - occur when cuttings accumulatearound tool joints. They cause the string to stickand prevent sliding. Use standard mud treatmentprocedures.

3. Change or Loss of rate of penetration.

A. Drilling Motor Stalled - Usually coincides withpressure increase. Rotary application should bestopped and any built up string torque slowlyreleased. The weight on bit can then be reducedallowing the drill bit to come loose and thedrilling motor to turn freely. If the pump pressureis still high, the pumps should be turned off.These steps must be followed in close successionto reduce potential stator damage.

B. Worn Stator - Refer to worn stator info under‘Circulation pressure is lower than calculated’above.

C. Change of Formation - Adjust the flow rate andweight on bit to optimize drilling performancefor the new formation conditions.

D. Drill String / Stabilizers Hung Up - Normal correc-tive procedures apply

E. Bit Worn or Balling - Normal bit wear or ballingprocedures apply.



27

9.0 DRILLING MOTOR SPECIFICATIONS

MOTOR SPECIFICATIONSListed here are the performance specifications of thedrilling motor, including minimum and maximum flowrate capacities, and minimum and maximum bit speed atfull load differential pressure. (Full load differential pres-sure is defined as the maximum differential pressure thedrilling motor is capable of operating under with accept-able wear rates and life expectancy. Tyically, the full loaddifferential pressure is also affected by the flow rate; thegreater the flow rate, the lower the full load differentialpressure). Also in the specification is the maximumtorque capacity that correlates with the full load differ-ential pressure of the minimum specified flow rate. Themaximum power is calculated from the maximum bitspeed and the maximum torque for the full load differ-ential pressure for the maximum flow rate specified. Themaximum allowable bit pressure drop is given. If thisvalue is exceeded, premature wear may occur to the seal-ing assembly.

DIMENSIONAL DATA Typical dimensions including length to bend, over-alllength, length to upsets, as well as maximum outer diam-eters for various padding arrangements. Also includedare the wellbore diameters that the drilling motors arerecommended for, top and bottom connection specifica-tions and total weight.

ULTIMATE LOAD FACTORSMaximum loads that may be applied to the drilling motorunder operating conditions. Pull To Yield Motor is thetensile load required to yield one of the housing connec-tions of the drilling motor. Maximum static and dynamicbit loads are also given.

ESTIMATED BUILD RATESA table is given correlating the adjustable bend settingand common wellbore diameters with an estimated buildrate. However, as conditions vary downhole, these esti-mates may be inaccurate for some wells. Caution shouldbe used when referring to these values as experiencewith certain formations will allow for a more informedestimate of the expected build rate. Also given in this sec-tion is the torque required for the adjustable assembly.

PERFORMANCE CHARTSCharts for both metric and imperial units are shown toprovide operational characteristics over the full range offlow rates and differential pressures for the drillingmotor. Each chart Is actually two charts laid over eachother. The two components of each chart are describedbelow, as well as instructions in how to read them.


28


RPMThe first component of the chart is the RPM line. Acrossthe bottom of the chart is differential pressure (kPa/psi).The differential pressure is the difference between thesystem pressure when the drilling motor is on-bottom(loaded) and off-bottom (not loaded). On the left side ofthe chart is the speed (RPM). These are the scales to beused when using the horizontal RPM lines on the chart.The horizontal lines start at the speed axis of the chartand begin to drop off slightly as differential pressureincreases. They eventually end somewhere past the fullload lines (vertical lines). These RPM lines are usually laidout as three lines, each for a different specified flow rate.The specified flow rates can be seen slightly above theline.

The RPM lines are used to determine what the drillingmotor RPM is, knowing what the flow rate and differen-tial pressure are. Using the chart in Figure 3 for a 121 mm(4 3/4”) Computalog Commander™ MN 4535 drillingmotor, if the flow rate is 660 lpm (175 GPM) and the dif-ferential pressure is 2700 kPa (390 psi), the speed of thedrilling motor would be approximately 155 RPM. For flowrates different than the ones given on the chart, lines canbe interpolated between the lines, then RPM read.

The chart shows what happens to the speed of thedrilling motor as differential pressure is increased. For themost part, the drop in RPM as differential pressureincreases is slight until the full load line is crossed. At thatpoint the RPM drops quickly to zero, which is stall mode.

Therefore, it is important to not go beyond the maximumrecommended operating differential pressure, or thedrilling motor will be operating inefficiently and wearwill occur.

TORQUEThe second component of the chart is the torque line. Onthe right side of the chart is the torque scale (N-m, ft-lbs).The torque line is used with this scale and the differentialpressure scale across the bottom. The torque line starts at0 differential pressure and 0 torque and increases linear-ly as diferential pressure increases. The same torque lineis used for the various flow rates because torque is inde-pendent of flow rate.

The torque output of the drilling motor can be deter-mined by knowing the differential pressure across thedrilling motor. Using the chart in Figure 3, if the differ-ential pressure is 2700 kPa (390 psi), the output torquefrom the drilling motor is approximately 1450 N-m(1050 ft - lbs).


29

FULL LOADAlso on the charts are full load lines. These lines indicatethe maximum recommended operating differential pres-sures of the drilling motor. If the differential pressuregoes beyond these maximum values, the operating life ofthe stator will be reduced. Excessive pressure drop acrossthe rotor and stator will cause pre-mature pressure washor chunking, and impair performance.

For some designs of drilling motors this maximum recom-mended operating differential pressure varies with theflow rate. The flow rate each full load line correlateswith is written within the line. Flow rates between thesevalues may have their full load lines interpolated. If onlya single full load line is on the performance chart, it isused for the full range of flow rates.

Figure 3: Performance Charts for a 121 mm (4 3/4”)Computalog Commander ™ MN4535


30

Computalog Commander™ Motor HandbookM

otor

Siz

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ande

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axim

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inim

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axim

umM

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Spe

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Torq

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m)

(inch

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(l/m

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(gpm

)(r

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(rpm

)(N

-m)

(ft-

lbs)

441

3/4

HN

1246

7620

440

1080

3425

3460

2 3/

8H

N12

7019

050

400

1220

115

8536

602

3/8

MN

5625

190

5010

034

015

511

538

602

3/8

ME

5652

190

5010

032

538

028

040

732

7/8

HN

1252

265

7015

072

021

015

542

732

7/8

MN

5633

300

8060

420

290

205

4473

2 7/

8M

E56

7030

080

6040

068

050

046

732

7/8

LN78

2526

570

6520

031

023

048

863

3/8

HN

1255

380

100

140

590

380

280

5086

3 3/

8M

N45

5042

011

050

310

760

560

5286

3 3/

8LN

7830

420

110

2515

591

567

554

953

3/4

HN

1244

530

140

180

510

500

360

5695

3 3/

4M

S56

3876

020

017

040

079

058

058

953

3/4

MN

4535

600

160

9022

010

6078

060

953

3/4

ME

7867

600

160

125

230

1930

1425

62

Drilling Motor Specification Summary


Mot

or S

ize

Com

man

der

Max

imum

Min

imum

Max

imum

Max

imum

Pag

e #

Flo

w R

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Bit

Spe

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Torq

ue(m

m)

(inch

es)

(l/m

in)

(gpm

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pm)

(rpm

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(ft-

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953

3/4

LN78

2360

0 16

045

115

1300

960

64

121

4 3/

4H

N12

3076

020

017

040

060

044

066

121

4 3/

4M

N45

3595

025

070

230

1700

1250

68

121

4 3/

4M

E45

6395

025

045

190

2450

1800

70

121

4 3/

4M

E56

8311

4030

060

265

4350

3200

72

121

4 3/

4LN

7822

950

250

3512

019

0014

0074

121

4 3/

4LE

7838

950

250

6512

033

0024

5076

121

4 3/

4LA

7820

950

250

2270

3800

2800

78

127

5M

E67

6013

3035

095

275

3750

2750

80

159

6 1/

4H

N12

4015

2040

090

420

1750

1300

82

159

6 1/

4M

N45

4315

2040

065

225

3250

2400

84

159

6 1/

4M

B45

4315

2040

065

225

3250

2400

86

159

6 1/

4M

E45

7515

2040

070

230

5800

4300

88

159

6 1/

4LN

7828

1520

400

3011

544

0032

5090

159

6 1/

4LB

7828

1520

400

3011

544

0032

5092

31


Mot

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Com

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Max

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Min

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Max

imum

Max

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Pag

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Bit

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Torq

ue(m

m)

(inch

es)

(l/m

in)

(gpm

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pm)

(rpm

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(ft-

lbs)

159

6 1/

4LE

7848

1520

40

032

115

7600

5600

94

171

6 3/

4H

N12

4019

0050

015

045

019

0014

0096

171

6 3/

4M

N45

4822

8060

010

026

046

0034

0098

171

6 3/

4M

E45

7022

8060

011

026

071

0052

5010

0

171

6 3/

4LN

7830

2280

600

6014

552

0038

5010

2

171

6 3/

4LE

6754

2280

600

6515

578

0057

5010

4

171

6 3/

4LE

7850

2280

600

6515

089

0065

5010

6

171

6 3/

4LA

7820

1900

500

2575

7200

5300

108

203

8H

N12

4022

8060

017

038

023

0017

0011

0

203

8M

N45

3634

0090

045

195

7200

5300

112

203

8M

E56

5034

0090

011

523

584

0062

0011

4

203

8M

E45

5334

0090

045

200

1000

074

0011

6

203

8LN

7830

3400

900

3213

510

400

7650

118

203

8LE

6740

3400

900

3014

011

500

8500

120

203

8LA

7820

3030

800

3585

9500

7000

122

32



33

Mot

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Com

man

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Max

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Min

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Max

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Max

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Pag

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Flo

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Bit

Spe

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it S

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Torq

ue(m

m)

(inch

es)

(l/m

in)

(gpm

)(r

pm)

(rpm

)(N

-m)

(ft-

lbs)

244

9 5/

8M

N34

4545

4012

0095

230

9650

7100

124

244

9 5/

8M

N45

4034

0090

055

170

9750

7200

126

244

9 5/

8M

E34

6045

4012

0095

225

1310

097

0012

8

244

9 5/

8LN

5630

4540

1200

5011

513

000

9600

130

244

9 5/

8LE

6750

4540

1200

4513

017

900

1320

013

2


34


44 mm / 13/4”Computalog Commander™ HN12461:2 Lobe, 4.6 Stage

DIMENSIONAL DATA

Length to Bend (A): 0.725 m 28.5 inOver-all Length (B): 3.020 m 119.0 inMaximum O.D.

Slick: 44.5 mm 1.75 inRecommended Hole Size

Min: 48 mm 17/8 inMax: 70 mm 23/4 in

Top Box Connection: AW Rod AW RodBottom Box Connection: AW Rod AW RodWeight: 23 kg 50 lbs

ULTIMATE LOAD FACTORSPull to Yield Motor: 16,700 daN 37,500 lbfMax. Static Bit Load: 5,100 daN 11,500 lbfMax. Dynamic Bit Load: 2,500 daN 5,500 lbf

Adjustable Torque: 510 N-m 375 ft-lbs


35

MOTOR SPECIFICATIONSFlow Rates Min: 38 I/min 10 gpm

Max: 76 I/min 20 gpmBit Speed Min: 440 rpm 440 rpm

Max: 1080 rpm 1080 rpmMaximum Torque: 34 N-m 25 ft-lbsMaximum Power: 3.8 kW 5.1 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop d): 1380 kPa 200 ps525 psi

PERFORMANCE CHARTS


36



DIMENSIONAL DATA

Length to Bend (A): 0.915 m 36 inLength to Wear Pad (B): 0.940 m 37 inOver-all Length (C): 4.040 m 159 inMaximum O.D.

Slick: 61 mm 2.400 inPadded: 67 mm 2.625 in

Recommended Hole SizeMin: 73 mm 27/8 inMax: 89 mm 31/2 in

Top Box Connection: BW Rod BW RodBottom Box Connection: BW Rod BW RodWeight: 55 kg 120 lbs


Adjustable Torque: 1,360 N-m 1,000 ft-lbs


37



Max: 1220 rpm 1220 rpmMaximum Torque: 115 N-m 85 ft-lbsMaximum Power: 15 kW 20 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop (No load): 1170 kPa 170 psiMaximum RecommendedOperating Differential Pressure(Full load): 5520 kPa 800 psi

PERFORMANCE CHARTS


38


60 mm / 23/8”Computalog Commander™ MN56255:6 Lobe, 2.5 Stage

DIMENSIONAL DATA








39



Max: 340 rpm 340 rpmMaximum Torque: 155 N-m 115 ft-lbsMaximum Power: 4.3 kW 5.8 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop (No load): 1280 kPa 185 psiMaximum RecommendedOperating Differential Pressure(Full load): 2350 kPa 340 psi

PERFORMANCE CHARTS

0

50

100

150

200

250

300

350

400

450

500

0 500 1000 1500 2000 2500 3000 3500

DIFFERENTIAL PRESSURE (kPa)

SP

EE

D (

RP

M)

0

25

50

75

100

125

150

175

200

225

250

TO

RQ

UE

(N

-m)

RPM -- 75 LPM

RPM -- 133 LPM

RPM -- 190 LPM

75 L

PM

133

LP

M

FULL LOAD

190

LP

M

TORQUE

0

50

100

150

200

250

300

350

400

450

500

0 50 100 150 200 250 300 350 400 450

DIFFERENTIAL PRESSURE (psi)

SP

EE

D (

RP

M)

0

15

30

45

60

75

90

105

120

135

150

TO

RQ

UE

(F

T-L

B)

RPM -- 20 GPM

RPM -- 35 GPM

RPM -- 50 GPM

20 G

PM

35 G

PM

50 G

PM

FULL LOAD

TORQUE


60 mm / 23/8”Computalog Commander™ ME56525:6 Lobe, 5.2 Stage

DIMENSIONAL DATA








40




Max: 325 rpm 325 rpmMaximum Torque: 380 N-m 280 ft-lbsMaximum Power: 11.5 kW 15.5 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop : 2350 kPa 340 psi

41

PERFORMANCE CHARTS


42



DIMENSIONAL DATA

Length to Wear Pad (A): 1.090 m 43 inLength to Bend (B): 1.140 m 45 inOver-all Length (C): 4.550 m 179 inMaximum O.D.

Slick: 75.0 mm 2.940 inBladed: 87.5 mm 3.440 in


Top Box Connection: 23/8 Reg 23/8 RegOption: NW Rod NW Rod

Bottom Box Connection: 23/8 Reg 23/8 RegOption: NW Rod NW Rod

Weight: 68 kg 150 lbs


ESTIMATED BUILD RATESDegrees / 30m (100 FT)

Adjustable Torque 3,400 N-m 2,500 ft-lbs

Adjustable Bend Wellbore Diameter

Setting Angle 89mm 98mm 114mm

3.5 in 3.875 in 4.5in

B 0.39 1 - -

C 0.78 5 3 -

D 1.15 8 6 3

E 1.5 11 10 6

F 1.83 14 13 9

G 2.12 17 15 12

H 2.38 19 18 15

I 2.6 21 20 17

J 2.77 23 21 18

K 2.9 24 22 19

L 2.97 25 23 20

M 3 25 23 20


43




PERFORMANCE CHARTS

0

200

400

600

800

1000

0 1000 2000 3000 4000 5000


SP

EE

D (

RP

M)

0

60

120

180

240

300

TO

RQ

UE

(N

-m)

RPM -- 75 LPM

RPM -- 170 LPM

RPM -- 265 LPM

FULL LOAD

TORQUE

0

200

400

600

800

1000

0 100 200 300 400 500 600 700


SP

EE

D (

RP

M)

0

50

100

150

200

250

TO

RQ

UE

(F

T-L

B)

RPM -- 20 GPM

RPM -- 45 GPM

RPM -- 70 GPM

FULL LOAD

TORQUE


44


73 mm / 27/8” Computalog Commander™ MN56335:6 Lobe, 3.3 Stage

DIMENSIONAL DATA












3.5 in 3.875 in 4.5in

B 0.39 1 1 -

C 0.78 5 4 2

D 1.15 12 10 4

E 1.5 17 14 8

F 1.83 21 18 12

G 2.12 25 22 16

H 2.38 29 26 19

I 2.6 32 29 22

J 2.77 34 31 25

K 2.9 35 32 27

L 2.97 36 33 28

M 3 36 33 28


45



Max: 420 rpm 420 rpmMaximum Torque: 290 N-m 205 ft-lbsMaximum Power: 9.8 kW 13 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop (No load): 1070 kPa 155 psiMaximum RecommendedOperating Differential Pressure(Full load): 3170 kPa 460 psi

PERFORMANCE CHARTS

0

50

100

150

200

250

300

350

400

450

500

550

0 500 1000 1500 2000 2500 3000 3500 4000 4500


SP

EE

D (

RP

M)

0

40

80

120

160

200

240

280

320

360

400

440

TO

RQ

UE

(N

-m)

RPM -- 75 LPM

RPM -- 188 LPM

RPM -- 300 LPM

75 L

PM

188

LP

M

300

LP

M

FULL LOAD

TORQUE

0

50

100

150

200

250

300

350

400

450

500

550

0 50 100 150 200 250 300 350 400 450 500 550 600


SP

EE

D (

RP

M)

0

25

50

75

100

125

150

175

200

225

250

275

TO

RQ

UE

(F

T-L

B)

RPM -- 20 GPM

RPM -- 50 GPM

RPM -- 80 GPM

20 G

PM

50 G

PM

80 G

PM

FULL LOAD

TORQUE


46


73 mm / 27/8” Computalog Commander™ ME56705:6 Lobe, 7.0 Stage

DIMENSIONAL DATA











3.5 in 3.875 in 4.5in

B 0.39 1 - -

C 0.78 5 3 -

D 1.15 8 6 3

E 1.5 11 10 6

F 1.83 14 13 9

G 2.12 17 15 12

H 2.38 19 18 15

I 2.6 21 20 17

J 2.77 23 21 18

K 2.9 24 22 19

L 2.97 25 23 20

M 3 25 23 20



47



Max: 400 rpm 400 rpmMaximum Torque: 680 N-m 500 ft-lbsMaximum Power: 27 kW 36 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop (No load): 1070 kPa 155 psiMaximum RecommendedOperating Differential Pressure

PERFORMANCE CHARTS


48


73 mm / 27/8” Computalog Commander™ LN78257:8 Lobe, 2.5 Stage

DIMENSIONAL DATA












3.5 in 3.875 in 4.5in

B 0.39 1 1 -

C 0.78 5 4 2

D 1.15 12 10 4

E 1.5 17 14 8

F 1.83 21 18 12

G 2.12 25 22 16

H 2.38 29 26 19

I 2.6 32 29 22

J 2.77 34 31 25

K 2.9 35 32 27

L 2.97 36 33 28

M 3 36 33 28


49



Max: 200 rpm 200 rpmMaximum Torque: 310 N-m 230 ft-lbsMaximum Power: 44 kW 59 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop (No load): 1070 kPa 155 psiMaximum RecommendedOperating Differential Pressure

PERFORMANCE CHARTS


50


86 mm / 33/8” Computalog Commander™ HN12551:2 Lobe, 5.5 Stage

DIMENSIONAL DATA

Length to First Wear Pad (A): 1.170 m 46 inLength to Bend (B): 1.270 m 50 inLength to Second Wear Pad (C):1.420 m 56 inOver-all Length (D): 6.430 m 253 inMaximum O.D.

Slick (23/8” Reg.): 86 mm 3.375 inSlick (27/8” Reg.): 95 mm 3.750 in

Bladed: 98 mm 3.875 inRecommended Hole Size

Min: 108 mm 41/4 inMax: 149 mm 57/8 in

Top Box Connection: 23/8 Reg 23/8 RegOption: 27/8 Reg 27/8 RegOption: 23/8 IF 23/8 IF

Bottom Box Connection: 27/8 Reg 27/8 RegOption: 23/8 Reg 23/8 Reg







4.5 in 4.75in 5.875in

B 0.39 - - -

C 0.78 1 - -

D 1.15 5 3 -

E 1.5 8 7 1

F 1.83 11 10 4

G 2.12 14 13 7

H 2.38 17 15 9

I 2.6 19 17 11

J 2.77 20 19 13

K 2.9 22 20 14

L 2.97 22 21 15

M 3 23 21 15


51




PERFORMANCE CHARTS

0

100

200

300

400

500

600

700

0 1000 2000 3000 4000 5000


SP

EE

D (

RP

M)

0

75

150

225

300

375

450

525

TO

RQ

UE

(N

-m)

RPM -- 115 LPM

RPM -- 248 LPM

RPM -- 380 LPMFULL LOAD

TORQUE

0

100

200

300

400

500

600

700

0 100 200 300 400 500 600 700 800


SP

EE

D (

RP

M)

0

50

100

150

200

250

300

350

TO

RQ

UE

(F

T-L

B)

RPM -- 30 GPM

RPM -- 65 GPM

RPM -- 100 GPMFULL LOAD

TORQUE


52



DIMENSIONAL DATA


Slick (23/8” Reg): 86 mm 3.375 inSlick (27/8” Reg): 95 mm 3.750 in


Min: 108 mm 41/4 inMax: 149 mm 57/8 in









4.5 in 4.75in 5.875in

B 0.39 - - -

C 0.78 2 - -

D 1.15 6 4 -

E 1.5 11 9 1

F 1.83 15 13 5

G 2.12 18 16 8

H 2.38 21 19 11

I 2.6 24 22 14

J 2.77 26 24 16

K 2.9 27 25 18

L 2.97 28 26 18

M 3 29 27 19


53




PERFORMANCE CHARTS

0

50

100

150

200

250

300

350

400

0 1000 2000 3000 4000 5000 6000


SP

EE

D (

RP

M)

0

150

300

450

600

750

900

1050

1200

TO

RQ

UE

(N

-m)

RPM -- 115 LPM

RPM -- 268 LPM

RPM -- 420 LPM

115

LP

M26

8 L

PM

420

LP

M

FULLLOAD

TORQUE

0

50

100

150

200

250

300

350

400

0 100 200 300 400 500 600 700 800 900


SP

EE

D (

RP

M)

0

100

200

300

400

500

600

700

800

TO

RQ

UE

(F

T-L

B)

RPM -- 30 GPM

RPM -- 70 GPM

RPM -- 110 GPM

30 G

PM

110

GP

M

70 G

PM

FULLLOAD

TORQUE


54



DIMENSIONAL DATA


Slick (23/8” Reg): 86 mm 3.375 inSlick (27/8” Reg): 95 mm 3.750 in


Min: 108 mm 41/4 inMax: 149 mm 57/8 in









4.5 in 4.75in 5.875in

B 0.39 - - -

C 0.78 2 - -

D 1.15 6 4 -

E 1.5 11 9 1

F 1.83 15 13 5

G 2.12 18 16 8

H 2.38 21 19 11

I 2.6 24 22 14

J 2.77 26 24 16

K 2.9 27 25 18

L 2.97 28 26 18

M 3 29 27 19


55




0

20

40

60

80

100

120

140

160

180

200

0 50 100 150 200 250 300 350 400 450 500 550


SP

EE

D (

RP

M)

0

100

200

300

400

500

600

700

800

900

1000

TO

RQ

UE

(F

T-L

B)

RPM -- 30 GPM

RPM -- 70 GPM

RPM -- 110 GPM

30 G

PM

70 G

PM

110

GP

M

FULL LOAD

TORQUE

PERFORMANCE CHARTS

0

20

40

60

80

100

120

140

160

180

200

0 500 1000 1500 2000 2500 3000 3500 4000


SP

EE

D (

RP

M)

0

120

240

360

480

600

720

840

960

1080

1200

TO

RQ

UE

(N

-m)

RPM -- 115 LPM

RPM -- 268 LPM

RPM -- 420 LPM

115

LP

M

420

LP

M

268

LP

M

FULL LOAD

TORQUE


56



DIMENSIONAL DATA

Length to Bend (A): 1.090 m 43 inOver-all Length (B): 6.401 m 252 inMaximum O.D.

Slick: 97 mm 3.825 inRecommended Hole Size

Min: 117 mm 45/8 inMax: 149 mm 57/8 in

Top Box Connection: 27/8 Reg 27/8 RegBottom Box Connection: 27/8 Reg 27/8 RegWeight: 205 kg 450 lbs





Setting Angle 121mm 149mm

4.75in 5.875in

B 0.39 - -

C 0.78 2 -

D 1.15 5 -

E 1.5 9 1

F 1.83 12 5

G 2.12 14 7

H 2.38 17 10

I 2.6 19 12

J 2.77 21 13

K 2.9 22 15

L 2.97 23 15

M 3 23 16


57




0

100

200

300

400

500

600

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000


SP

EE

D (

RP

M)

0

100

200

300

400

500

600

TO

RQ

UE

(N

-m)

FULL LOAD

RPM -- 230 LPM

RPM -- 380 LPM

RPM -- 530 LPM

TORQUE

0

100

200

300

400

500

600

0 100 200 300 400 500 600 700


SP

EE

D (

RP

M)

0

100

200

300

400

500

600

TO

RQ

UE

(ft

-lb

)

FULL LOAD

RPM -- 60 GPM

RPM -- 100 GPM

RPM -- 140 GPM

TORQUE

PERFORMANCE CHARTS


58


95 mm / 33/4” Computalog Commander™ MS56385:6 Lobe, 3.8 Stage

DIMENSIONAL DATA



Min: 117 mm 45/8 inMax: 149 mm 57/8 in


ULTIMATE LOAD FACTORSPull to Yield Motor: 83,600 daN 188,000 lbfMax. Static Bit Load: 30,000 daN 67,400 lbf

Max. Dynamic Bit Load: 9,000 daN 20,200 lbf





4.75in 5.875in

B 0.39 1 -

C 0.78 6 -

D 1.16 12 -

E 1.53 17 6

F 1.89 23 12

G 2.23 28 18

H 2.54 33 23

I 2.83 37 28

J 3.09 42 32

K 3.33 46 36

L 3.53 48 39

M 3.7 52 42

N 3.83 54 44

O 3.92 55 45

P 3.98 56 46

Q 4 56 47


59




PERFORMANCE CHARTS



DIMENSIONAL DATA



Min: 117 mm 45/8 inMax: 149 mm 57/8 in







4.75in 5.875in

B 0.39 - -

C 0.78 2 -

D 1.15 6 -

E 1.5 10 2

F 1.83 14 6

G 2.12 18 9

H 2.38 21 12

I 2.6 23 15

J 2.77 25 16

K 2.9 27 18

L 2.97 27 19

M 3 28 19

60



61



Max: 220 rpm 220 rpmMaximum Torque: 1060 N-m 780 ft-lbsMaximum Power: 21 kW 28 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psi315 psi

PERFORMANCE CHARTS


62



DIMENSIONAL DATA



Min: 117 mm 45/8 inMax: 149 mm 57/8 in







4.75in 5.875in

B 0.39 - -

C 0.78 2 -

D 1.15 5 -

E 1.5 9 1

F 1.83 12 5

G 2.12 14 7

H 2.38 17 10

I 2.6 19 12

J 2.77 21 13

K 2.9 22 15

L 2.97 23 15

M 3 23 16


63




PERFORMANCE CHARTS


64



DIMENSIONAL DATA



Min: 117 mm 45/8 inMax: 149 mm 57/8 in







4.75in 5.875in

B 0.39 - -

C 0.78 2 -

D 1.15 6 -

E 1.5 10 2

F 1.83 14 6

G 2.12 18 9

H 2.38 21 12

I 2.6 23 15

J 2.77 25 16

K 2.9 27 18

L 2.97 27 19

M 3 28 19


65




0

20

40

60

80

100

120

140

0 500 1000 1500 2000 2500 3000


SP

EE

D (

RP

M)

0

250

500

750

1000

1250

1500

1750

TO

RQ

UE

(N

-m)

300

LP

M

RPM -- 300 LPM

RPM -- 450 LPM

RPM -- 600 LPM

450

LP

M

600

LP

M

FULL LOAD

TORQUE

0

20

40

60

80

100

120

140

0 50 100 150 200 250 300 350 400 450


SP

EE

D (

RP

M)

0

200

400

600

800

1000

1200

1400

TO

RQ

UE

(ft

-lb

)

80 G

PM

RPM -- 80 GPM

RPM -- 120 GPM

RPM -- 160 GPM

120

GP

M

160

GP

M

FULL LOAD

TORQUE

PERFORMANCE CHARTS


66



DIMENSIONAL DATA

Length to Kick Pad (A): 0.56 m 22 inLength to First Wear Pad (B): 1.68 m 66 inLength to Bend (C): 1.76 m 70 inLength to Second Wear Pad (D): 1.98 m 78 inOver-all Length (E): 6.20 m 244 inMaximum O.D.

Slick: 127 mm 5.00 inBladed: 140 mm 5.50 in

Padded: 140 mm 5.50 inRecommended Hole Size

Min: 149 mm 57/8 inMax: 200 mm 77/8 in

Top Box Connection: 31/2 Reg 31/2 RegOption: 31/2 IF 31/2 IF

Bottom Box Connection: 31/2 Reg 31/2 Reg







Setting Angle 152mm 156mm 165mm 200mm

6 in 6.125 in 6.5 in 7.875 in

B 0.39 3 3 1 -

C 0.78 7 6 5 -

D 1.15 11 10 9 3

E 1.5 14 13 12 6

F 1.83 17 17 15 10

G 2.12 20 20 18 13

H 2.38 23 22 21 15

I 2.6 25 24 23 17

J 2.77 26 26 24 19

K 2.9 28 27 26 20

L 2.97 28 28 26 21

M 3 29 28 27 21


67




PERFORMANCE CHARTS

0

50

100

150

200

250

300

350

400

450

500

0 500 1000 1500 2000 2500 3000


SP

EE

D (

RP

M)

0

80

160

240

320

400

480

560

640

720

800

TO

RQ

UE

(N

-m)

RPM -- 380 LPM

FULL LOAD

RPM -- 570 LPM

RPM -- 760 LPM

TORQUE

0

50

100

150

200

250

300

350

400

450

500

0 50 100 150 200 250 300 350 400 450


SP

EE

D (

RP

M)

0

60

120

180

240

300

360

420

480

540

600

TO

RQ

UE

(F

T-L

B)

RPM -- 100 GPM

RPM -- 150 GPM

RPM -- 200 GPM FULL LOAD

TORQUE


68



DIMENSIONAL DATA




Min: 149 mm 57/8 inMax: 200 mm 77/8 in

Top Box Connection: 31/2 IF 31/2 IFOption: 31/2 Reg 31/2 Reg

Bottom Box Connection: 31/2 Reg 31/2 RegWeight: 340 kg 750 lbs






6 in 6.125 in 6.5 in 7.875 in

B 0.39 4 3 1 -

C 0.78 8 7 6 -

D 1.15 12 12 10 4

E 1.5 16 15 14 7

F 1.83 20 19 17 11

G 2.12 23 22 21 14

H 2.38 26 25 23 17

I 2.6 28 28 26 20

J 2.77 30 29 28 22

K 2.9 31 31 29 23

L 2.97 32 32 30 24

M 3 33 32 30 24


69




PERFORMANCE CHARTS

0

50

100

150

200

250

300

0 500 1000 1500 2000 2500 3000 3500 4000 4500


SP

EE

D (

RP

M)

0

400

800

1200

1600

2000

2400

TO

RQ

UE

(N

-m)

RPM -- 380 LPM

RPM -- 660 LPM

RPM -- 950 LPM

380

LP

M

660

LP

M

950

LP

M

FULLLOAD

TORQUE

0

50

100

150

200

250

300

0 100 200 300 400 500 600 700


SP

EE

D (

RP

M)

0

300

600

900

1200

1500

1800

TO

RQ

UE

(F

T-L

B)

RPM -- 100 GPM

RPM -- 175 GPM

RPM -- 250 GPM

100

GP

M

175

GP

M

250

GP

M

FULLLOAD

TORQUE


70



DIMENSIONAL DATA




Min: 149 mm 57/8 inMax: 200 mm 77/8 in










6 in 6.125 in 6.5 in 7.875 in

B 0.39 2 1 - -

C 0.78 5 4 3 -

D 1.15 8 7 6 2

E 1.5 10 10 9 5

F 1.83 13 13 11 7

G 2.12 15 15 13 10

H 2.38 16 16 15 12

I 2.6 18 18 17 13

J 2.77 19 19 18 14

K 2.9 20 20 19 15

L 2.97 21 21 20 16

M 3 21 21 20 16


71




PERFORMANCE CHARTS


72


121 mm / 43/4” Computalog Commander™ ME56835.6 Lobe, 8.3 Stage

DIMENSIONAL DATA




Min: 149 mm 57/8 inMax: 200 mm 77/8 in









6 in 6.125 in 6.5 in 7.875 in

B 0.39 2 2 1 -

C 0.78 5 4 3 -

D 1.15 7 7 6 3

E 1.5 10 9 8 5

F 1.83 12 12 11 7

G 2.12 14 14 13 9

H 2.38 16 15 14 11

I 2.6 17 17 16 13

J 2.77 18 18 17 14

K 2.9 19 19 18 15

L 2.97 20 20 19 15

M 3 20 20 19 15


73




PERFORMANCE CHARTS


74



DIMENSIONAL DATA




Min: 149 mm 57/8 inMax: 200 mm 77/8 in








6 in 6.125 in 6.5 in 7.875 in

B 0.39 4 3 1 -

C 0.78 8 7 6 -

D 1.15 12 12 10 4

E 1.5 16 15 14 7

F 1.83 20 19 17 11

G 2.12 23 22 21 14

H 2.38 26 25 23 17

I 2.6 28 28 26 20

J 2.77 30 29 28 22

K 2.9 31 31 29 23

L 2.97 32 32 30 24

M 3 33 32 30 24


75



Max: 120 rpm 120 rpmMaximum Torque: 1900 N-m 1400 ft-lbsMaximum Power: 17 kW 23 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psi

PERFORMANCE CHARTS

0

20

40

60

80

100

120

140

160

0 500 1000 1500 2000 2500 3000


SP

EE

D (

RP

M)

0

400

800

1200

1600

2000

2400

2800

3200

TO

RQ

UE

(N

-m)

RPM -- 380 LPM

RPM -- 660 LPM

RPM -- 950 LPM

660

LP

M

380

LP

M

950

LP

M

FULL LOAD

TORQUE

0

20

40

60

80

100

120

140

160

0 50 100 150 200 250 300 350 400 450


SP

EE

D (

RP

M)

0

250

500

750

1000

1250

1500

1750

2000

TO

RQ

UE

(F

T-L

B)

RPM -- 100 GPM

RPM -- 175 GPM

RPM -- 250 GPM

100

GP

M

175

GP

M

250

GP

M

FULL LOAD

TORQUE


76


121 mm / 43/4” Computalog Commander™ LE78387:8 Lobe, 3.8 Stage

DIMENSIONAL DATA




Min: 149 mm 57/8 inMax: 200 mm 77/8 in









6 in 6.125 in 6.5 in 7.875 in

B 0.39 2 2 1 -

C 0.78 5 5 4 -

D 1.15 8 8 7 3

E 1.5 11 11 10 6

F 1.83 14 13 12 9

G 2.12 16 16 15 11

H 2.38 18 18 17 13

I 2.6 20 20 19 15

J 2.77 21 21 20 16

K 2.9 22 22 21 17

L 2.97 23 22 21 18

M 3 23 23 22 18


77




PERFORMANCE CHARTS


78


121 mm / 43/4”Computalog Commander™ LA78207:8 Lobe, 2.0 Stage

DIMENSIONAL DATA




Min: 149 mm 57/8 inMax: 200 mm 77/8 in








6 in 6.125 in 6.5 in 7.875 in

B 0.39 2 2 1 -

C 0.78 5 5 4 -

D 1.15 8 8 7 3

E 1.5 11 11 10 6

F 1.83 14 13 12 9

G 2.12 16 16 15 11

H 2.38 18 18 17 13

I 2.6 20 20 19 15

J 2.77 21 21 20 16

K 2.9 22 22 21 17

L 2.97 23 22 21 18

M 3 23 23 22 18


79




PERFORMANCE CHARTS


80


127 mm / 5” Computalog Commander™ ME67606:7 Lobe, 6.0 Stage

DIMENSIONAL DATA

Length to Kick Pad (A): 0.56 m 22 inLength to Wear Pad (B): 1.68 m 66 inLength to Bend (C): 1.76 m 70 inLength to Second Wear Pad:(D) 1.98 m 78 inOver-all Length (E): 7.26 m 286 inMaximum O.D.



Min: 149 mm 57/8 inMax: 200 mm 77/8 in









6 in 6.125 in 6.5 in 7.875 in

B 0.39 2 2 1 -

C 0.78 5 5 4 -

D 1.15 8 8 7 3

E 1.5 11 11 10 6

F 1.83 14 13 12 9

G 2.12 16 16 15 11

H 2.38 18 18 17 13

I 2.6 20 20 19 15

J 2.77 21 21 20 16

K 2.9 22 22 21 17

L 2.97 23 22 21 18

M 3 23 23 22 18


81



Max: 275 rpm 275 rpmMaximum Torque: 3750 N-m 2750 ft-lbsMaximum Power: 90 kW 120 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop (No load): 1000 kPa 145 psi

PERFORMANCE CHARTS



DIMENSIONAL DATA

Length to Kick Pad (A): 0.64 m 25 inLength to Wear Pad (B): 2.21 m 87 inLength to Bend (C): 2.34 m 92 inOver-all Length (D): 7.49 m 295 inMaximum O.D.



Top Box Connection: 41/2 XH 41/2 XHOption: 41/2 Reg 41/2 RegOption: 41/2 IF 41/2 IF




Adjustable Torque: 3° 27,200 N-m 20,000 ft-lbs2° 13,600 N-m 10,000 ft-lbs

82




7.875 in 8.5 in 8.75 in 9.875 in

B 0.39 1 - - -

C 0.78 4 2 2 -

D 1.15 6 5 4 2

E 1.5 8 7 7 4

F 1.83 11 9 9 7

G 2.12 12 11 11 8

H 2.38 14 13 12 10

I 2.6 16 14 14 12

J 2.77 17 15 15 13

K 2.9 18 16 16 14

L 2.97 18 17 16 14

M 3 18 17 16 14


83

PERFORMANCE CHARTS





84



DIMENSIONAL DATA

Length to Kick Pad (A): 0.64 m 25 inLength to First Wear Pad(B): 2.21 m 87 inLength to Bend (C): 2.34 m 92 inOver-all Length (D): 6.58 m 259 inMaximum O.D.










7.875 in 8.5 in 8.75 in 9.875 in

B 0.39 2 - - -

C 0.78 4 3 3 -

D 1.15 7 6 5 3

E 1.5 9 8 8 5

F 1.83 12 10 10 7

G 2.12 14 12 12 9

H 2.38 16 14 14 11

I 2.6 17 16 15 13

J 2.77 18 17 16 14

K 2.9 19 18 17 15

L 2.97 20 18 18 15

M 3 20 18 18 16


85




PERFORMANCE CHARTS

0

50

100

150

200

250

300

0 1000 2000 3000 4000 5000


SP

EE

D (

RP

M)

0

750

1500

2250

3000

3750

4500

TO

RQ

UE

(N

-m)

RPM -- 560 LPM

RPM -- 1040 LPM

RPM -- 1520 LPM

560

LP

M

1040

LP

M

1520

LP

M

FULLLOAD

TORQUE

0

50

100

150

200

250

300

0 100 200 300 400 500 600 700 800


SP

EE

D (

RP

M)

0

600

1200

1800

2400

3000

3600

TO

RQ

UE

(F

T-L

B)

RPM -- 150 GPM

RPM -- 275 GPM

RPM -- 400 GPM

150

GP

M27

5 G

PM

400

GP

M

FULLLOAD

TORQUE


86


159 mm / 61/4” Computalog Commander™ MB45437:8 Lobe, 2.8 Stage

DIMENSIONAL DATA

Length to Kick Pad (A): 0.74 m 29 inLength to First Wear Pad: 1.02 m 40 inLength to Bend (B): 1.12 m 44 inLength to Second Wear Pad (C): 1.32 m 52 inOver-all Length (D): 7.04 m 277 inMaximum O.D.












7.875 in 8.5 in 8.75 in 9.875 in

B 0.39 2 - - -

C 0.78 4 3 3 -

D 1.15 7 6 5 3

E 1.5 9 8 8 5

F 1.83 12 10 10 7

G 2.12 14 12 12 9

H 2.38 16 14 14 11

I 2.6 17 16 15 13

J 2.77 18 17 16 14

K 2.9 19 18 17 15

L 2.97 20 18 18 15

M 3 20 18 18 16


87



Max: 225 rpm 225 rpmMaximum Torque: 3250 N-m 2400 ft-lbsMaximum Power: 70 kW 94 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop a410 psi

PERFORMANCE CHARTS


88



DIMENSIONAL DATA

Length to Kick Pad (A): 0.64 m 25 inLength to First Wear Pad(B): 1.98 in 78 inLength to Bend (C): 2.16 m 85 inLength to Second Wear Pad (D): 2.36 m 93 inOver-all Length (E): 8.28 m 326 inMaximum O.D.


Min: 200 mm 77/8 inMax: 251 mm 97/8 in








7.875 in 8.5 in 8.75 in 9.875 in

B 0.39 - - - -

C 0.78 3 2 1 -

D 1.15 5 4 4 1

E 1.5 7 6 6 3

F 1.83 9 8 7 6

G 2.12 11 9 9 7

H 2.38 12 11 11 8

I 2.6 13 12 12 10

J 2.77 14 13 12 11

K 2.9 15 14 13 12

L 2.97 16 14 14 12

M 3 16 14 14 12


89

PERFORMANCE CHARTS



Max: 230 rpm 230 rpmMaximum Torque: 5800 N-m 4300 ft-lbsMaximum Power: 133 kW 178 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop a410 psi


90



DIMENSIONAL DATA

Length to Kick Pad (A): 0.64 m 25 inLength to First Wear Pad (B): 1.98 m 78 inLength to Bend (C): 2.16 m 85 inLength to Second Wear Pad(D): 2.36m 93 inOver-all Length (E): 6.27 m 247 inMaximum O.D.

Padded: 178 mm 7,000 inRecommended Hole Size

Min: 200 mm 77/8 inMax: 251 mm 97/8 in

Top Box Connection: 41/2 x H 41/2 x HOption: 41/2 Reg 41/2 RegOption: 41/2 IF 41/2 IF

Bottom Box Connection: 41/2 Reg 41/2 RegWeight: 900kg 1975 lbs






7.875 in 8.5 in 8.75 in 9.875 in

B 0.39 1 - - -

C 0.78 4 3 2 -

D 1.15 7 6 5 2

E 1.5 10 8 7 5

F 1.83 12 11 10 7

G 2.12 14 13 12 9

H 2.38 16 15 14 12

I 2.6 18 16 16 13

J 2.77 18 17 17 14

K 2.9 19 18 18 15

L 2.97 20 18 18 16

M 3 20 18 18 16


91

MOTOR SPECIFICATIONSFlow Rates: Min: 560 l/min. 150gpm

Max: 1520 l/min. 400 gpmBit Speed: Min: 30 rpm 30 rpm


PERFORMANCE CHARTS


92


159 mm / 61/4” Computalog Commander™ LB78287:8 Lobe, 2.8 Stage

DIMENSIONAL DATA

Length to Kick Pad (A): 0.74 m 29 inLength to First Wear Pad: 1.02 m 40 inLength to Bend (B): 1.12 m 44 inLength to Second Wear Pad (C): 1.32 m 52 inOver-all Length (D): 7.04 m 277 inMaximum O.D.


Recommended Hole SizeMin: 200 mm 77/

8 inMax: 251 mm 97/

8 inTop Box Connection: 41/2 XH 41/2 XH

Option: 41/2 Reg 41/2 RegOption: 41/2 IF 41/2 IF







7.875 in 8.5 in 8.75 in 9.875 in

B 0.39 2 - - -

C 0.78 4 3 3 -

D 1.15 7 6 5 3

E 1.5 9 8 8 5

F 1.83 12 10 10 7

G 2.12 14 12 12 9

H 2.38 16 14 14 11

I 2.6 17 16 15 13

J 2.77 18 17 16 14

K 2.9 19 18 17 15

L 2.97 20 18 18 15

M 3 20 18 18 16


93




PERFORMANCE CHARTS



DIMENSIONAL DATA

Length to Kick Pad (A) 0.64 m 25 inLength to First Wear Pad(B): 1.98 m 78 inLength to Bend (C): 2.16 m 85 inLength to Second Wear Pad (D): 2.36 m 93 inOver-all Length (E): 8.28 m 326 inMaximum O.D.


Min: 200 mm 77/8 inMax: 251 mm 97/8 in





94





7.875 in 8.5 in 8.75 in 9.875 in

B 0.39 - - - -

C 0.78 3 2 1 -

D 1.15 5 4 4 1

E 1.5 7 6 6 3

F 1.83 9 8 7 6

G 2.12 11 9 9 7

H 2.38 12 11 11 8

I 2.6 13 12 12 10

J 2.77 14 13 12 11

K 2.9 15 14 13 12

L 2.97 16 14 14 12

M 3 16 14 14 12


95



Max: 115 rpm 115 rpmMaximum Torque: 7600 N-m 5600 ft lbsMaximum Power 79 kW 106 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psi

PERFORMANCE CHARTS


96



DIMENSIONAL DATA








Adjustable Torque: 3º 27,200 N-m 20,000 ft-lbs2º 13,600 N-m 10,000 ft-lbs



8.5 in 8.75 in 9.875 in

B 0.39 - - -

C 0.78 1 1 -

D 1.15 4 3 1

E 1.5 6 5 3

F 1.83 8 7 5

G 2.12 9 9 7

H 2.38 11 11 8

I 2.6 12 12 10

J 2.77 13 13 11

K 2.9 14 14 12

L 2.97 15 14 12

M 3 15 14 12


97



Max: 450 rpm 450 rpmMaximum Torque: 1900 N-m 1400 ft-lbsMaximum Power: 89 kW 120 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop (No load): 1850 kPa 270 psiMaximum Recommended

Operating Differential Pressure(Full load): 2950 kPa 430 psi

PERFORMANCE CHARTS


98



DIMENSIONAL DATA

Length to Kick Pad (A): 0.64 m 25 inLength to First Wear Pad(B): 1.98 m 78 inLength to Bend (C): 2.16 m 85 inLength to Second Wear Pad (D): 2.36 m 93 inOver-all Length (E): 6.68 m 271 inMaximum O.D.







ESTIMATED BUILD RATESDegrees / 30m (100FT)



8.5 in 8.75 in 9.875 in

B 0.39 1 1 -

C 0.78 4 3 1

D 1.15 6 6 3

E 1.5 9 8 6

F 1.83 11 10 8

G 2.12 13 12 10

H 2.38 15 14 11

I 2.6 16 15 13

J 2.77 17 17 14

K 2.9 18 17 15

L 2.97 18 18 15

M 3 19 18 16

Adjustable torque: 34,000 N-m 25,000 ft-lbs


99



Max: 260 rpm 260 rpmMaximum Torque: 4600 N-m 3400 ft-lbsMaximum Power: 111 kW 149 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop 2950 kPa 430 psi

PERFORMANCE CHARTS


100



DIMENSIONAL DATA

Length to Kick Pad (A): 0.64 m 25 inLength to First Wear Pad (B): 1.98 m 78 inLength to Second Wear Pad (C): 2.16 m 85 inLength to Bend (D): 2.36 m 93 inOver-all Length (E): 8.45 m 333 inMaximum O.D.











8.5 in 8.75 in 9.875 in

B 0.39 - - -

C 0.78 3 2 -

D 1.15 5 5 2

E 1.5 7 6 5

F 1.83 9 8 6

G 2.12 11 10 8

H 2.38 12 12 10

I 2.6 13 13 11

J 2.77 14 14 12

K 2.9 15 15 12

L 2.97 16 15 13

M 3 16 15 13


101



Max: 260 rpm 260 rpmMaximum Torque: 7100 N-m 5250 ft-lbsMaximum Power: 179 kW 240 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop 3100 kPa 450 psi

PERFORMANCE CHARTS


102


171 mm / 63/4”Computalog Commander™ LN78307:8 Lobe, 3.0 Stage

DIMENSIONAL DATA











8.5 in 8.75 in 9.875 in

B 0.39 2 1 -

C 0.78 4 4 1

D 1.15 7 7 4

E 1.5 10 9 6

F 1.83 12 11 9

G 2.12 14 14 11

H 2.38 16 15 13

I 2.6 18 17 14

J 2.77 19 18 16

K 2.9 20 19 16

L 2.97 20 20 17

M 3 21 20 17


103



Max: 145 rpm 145 rpmMaximum Torque: 5200 N-m 3850 ft-lbsMaximum Power: 62 kW 83 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop : 2930 kPa 425 psi

PERFORMANCE CHARTS


104



DIMENSIONAL DATA



Recommended Hole SizeMin: 213 mm 83/8 inMax: 270 mm 10 5/8 in










8.5 in 8.75 in 9.875 in

B 0.39 - - -

C 0.78 3 2 -

D 1.15 5 5 2

E 1.5 7 6 5

F 1.83 9 8 6

G 2.12 11 10 8

H 2.38 12 12 10

I 2.6 13 13 11

J 2.77 14 14 12

K 2.9 15 15 12

L 2.97 16 15 13

M 3 16 15 13


105




PERFORMANCE CHARTS


106


171 mm / 63/4” Computalog Commander™ LE7850 7:8 Lobe, 5.0 Stage

DIMENSIONAL DATA












8.5 in 8.75 in 9.875 in

B 0.39 - - -

C 0.78 3 2 -

D 1.15 5 5 2

E 1.5 7 6 5

F 1.83 9 8 6

G 2.12 11 10 8

H 2.38 12 12 10

I 2.6 13 13 11

J 2.77 14 14 12

K 2.9 15 15 12

L 2.97 16 15 13

M 3 16 15 13


107



Max: 150 rpm 150 rpmMaximum Torque: 8900 N-m 6550 ft-lbsMaximum Power: 121 kW 162 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Drop d): 2930 kPa 425 psi

PERFORMANCE CHARTS




171 mm / 63/4” Computalog Commander™ LA78207:8 Lobe, 2.0 Stage

DIMENSIONAL DATA



Recommended Hole SizeMin: 213 mm 8 3/8 inMax: 270 mm 105/8 in





108



8.5 in 8.75 in 9.875 in

B 0.39 1 1 -

C 0.78 4 3 1

D 1.15 6 6 3

E 1.5 9 8 6

F 1.83 11 10 8

G 2.12 13 12 10

H 2.38 15 14 11

I 2.6 16 15 13

J 2.77 17 17 14

K 2.9 18 17 15

L 2.97 18 18 15

M 3 19 18 16

13985 Computalog 110 -end. qxd 3/12/01 3:12 PM Page 108

109




Motor Pressure Dr50 kPa125 psi Maximum Recommendg

PERFORMANCE CHARTS


203mm / 8” Computalog Commander™ HN12401:2 Lobe, 4.0 Stage

DIMENSIONAL DATA

Length to Kick Pad (A): 0.64 m 25 inLength to First Wear Pad (B): 2.21 m 87 inLength to Bend (C): 2.36 m 93 inLength to Second Wear Pad(D): 2.67 m 105 inOver-all Length (E): 8.25 m 325 inMaximum O.D.






110





9.875 in 10.625 in 12.25 in

B 0.39 2 1 -

C 0.78 4 3 -

D 1.15 6 5 2

E 1.5 8 7 4

F 1.83 10 9 6

G 2.12 11 10 7

H 2.38 13 12 9

I 2.6 14 13 10

J 2.77 15 14 11

K 2.9 16 15 12

L 2.97 16 15 12

M 3 16 15 12


111



Max: 380 rpm 380 rpmMaximum Torque: 2300 N-m 1700 ft-lbsMaximum Power: 92 kW 123 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiMotor Pressure Dr50 kPa125 psi MaximumRecommendedOperating Differential PressureFull load 3600 kPa520 psi

PERFORMANCE CHARTS


112


203mm / 8” Computalog Commander™ MN45364:5 Lobe, 3.6 Stage

DIMENSIONAL DATA










9.875 in 10.625 in 12.25 in

B 0.39 2 1 -

C 0.78 4 3 -

D 1.15 7 5 2

E 1.5 9 7 4

F 1.83 11 9 6

G 2.12 12 11 8

H 2.38 14 13 10

I 2.6 15 14 11

J 2.77 16 15 12

K 2.9 17 16 13

L 2.97 18 16 13

M 3 18 16 13


113



Max: 195 rpm 195 rpmMaximum Torque: 7200 N-m 5300 ft-lbsMaximum Power: 119 kW 160 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiPressure Dr50 kPa125 psi Maximum Recommended

Operating Differential PressureFull load 3600 kPa520 psi

PERFORMANCE CHARTS


114


203mm / 8” Computalog Commander™ ME56505:6 Lobe, 5.0 Stage

DIMENSIONAL DATA










9.875 in 10.625 in 12.25 in

B 0.39 2 1 -

C 0.78 4 3 -

D 1.15 7 5 2

E 1.5 9 7 4

F 1.83 11 9 6

G 2.12 12 11 8

H 2.38 14 13 10

I 2.6 15 14 11

J 2.77 16 15 12

K 2.9 17 16 13

L 2.97 18 16 13

M 3 18 16 13


115



Max: 235 rpm 235 rpmMaximum Torque: 8400 N-m 6200 ft-lbsMaximum Power: 189 kW 253 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiPressure Dr50 kPa125 psi Maximum RecommendedOperating Differential PressureFull load 3600 kPa520 psi

PERFORMANCE CHARTS


116


203mm / 8” Computalog Commander™ ME45534:5 Lobe, 5.3 Stage

DIMENSIONAL DATA









Setting Angle 251mm 270 mm 311mm

9.875 in 10.625 in 12.25 in

B 0.39 2 1 -

C 0.78 4 3 -

D 1.15 6 5 2

E 1.5 7 6 4

F 1.83 9 8 6

G 2.12 10 9 7

H 2.38 12 11 8

I 2.6 13 12 9

J 2.77 14 13 10

K 2.9 14 13 11

L 2.97 15 14 11

M 3 15 14 12


117



Max: 200 rpm 200 rpmMaximum Torque: 10,000 N-m 7400 ft-lbsMaximum Power: 185 kW 248 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiPressure Dr50 kPa125 psi Maximum Recommended


PERFORMANCE CHARTS


118


203mm / 8” Computalog Commander™ LN 78307:8 Lobe, 3.0 Stage

DIMENSIONAL DATA










9.875 in 10.625 in 12.25 in

B 0.39 2 1 -

C 0.78 4 3 -

D 1.15 7 5 2

E 1.5 9 7 4

F 1.83 11 9 6

G 2.12 12 11 8

H 2.38 14 13 10

I 2.6 15 14 11

J 2.77 16 15 12

K 2.9 17 16 13

L 2.97 18 16 13

M 3 18 16 13


119





PERFORMANCE CHARTS


120


203mm / 8” Computalog Commander™ LE67406:7 Lobe, 4.0 Stage

DIMENSIONAL DATA










9.875 in 10.625 in 12.25 in

B 0.39 2 1 -

C 0.78 4 3 1

D 1.15 6 5 2

E 1.5 8 7 4

F 1.83 10 9 6

G 2.12 11 10 7

H 2.38 13 11 9

I 2.6 14 13 10

J 2.77 15 14 11

K 2.9 15 14 12

L 2.97 16 15 12

M 3 16 15 12


121





PERFORMANCE CHARTS


122


203mm / 8” Computalog Commander™ LA78206:7 Lobe, 4.0 Stage

DIMENSIONAL DATA

Length to Kick Pad (A): 0.64 m 25 in

Length to First Wear Pad (B): 2.21 m 87 inLength to Bend (C): 2.36 m 93 inLength to Second Wear Pad (D): 2.67 m 105 inOver-all Length (E): 7.87 m 310 inMaximum O.D.


Recommended Hole SizeMin: 245 mm 95/8 inMax: 310 mm 121/4in







9.875 in 10.625 in 12.25 in

B 0.39 2 1 -

C 0.78 4 3 -

D 1.15 7 5 2

E 1.5 9 7 4

F 1.83 11 9 6

G 2.12 12 11 8

H 2.38 14 13 10

I 2.6 15 14 11

J 2.77 16 15 12

K 2.9 17 16 13

L 2.97 18 16 13

M 3 18 16 13


123



Max: 85 rpm 85 rpmMaximum Torque: 9500 N-m 7000 ft-lbsMaximum Power: 51 kW 68 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiPressure Dr50 kPa125 psi Maximum Recommended


PERFORMANCE CHARTS


124


244mm / 95/8” Computalog Commander™ MN34453:4 Lobe, 4.5 Stage

DIMENSIONAL DATA

Length to Kick Pad (A): 0.87 m 34 inLength to First Wear Pad (B): 2.28 m 90 inLength to Bend (C): 2.46 m 97 inOver-all Length (D): 8.38 m 330 inMaximum O.D.


Min: 311 mm 121/4 inMax: 445 mm 171/2 in

Top Box Connection: 75/8 Reg 75/8 RegBottom Box Connection: 75/8 Reg 75/8 Reg

Option: 65/8 Reg 65/8 RegWeight: 2060 kg 4550 lbs

ULTIMATE LOAD FACTORSPull to Yield Motor: 556,000 daN 1,250,000 lbfMax. Static Bit Load: 360,000 daN 809,000 lbfMax. Dynamic Bit Load: 125,000 daN 281,000 lbf





12.25 in 14.75 in 17.5 in

B 0.39 1 - -

C 0.78 3 - -

D 1.15 5 1 -

E 1.5 7 3 -

F 1.83 9 5 -

G 2.12 11 6 2

H 2.38 12 8 3

I 2.6 14 9 4

J 2.77 15 10 5

K 2.9 15 11 6

L 2.97 16 11 7

M 3 16 12 7


125



Max: 230 rpm 230 rpmMaximum Torque: 9650 N-m 7100 ft-lbsMaximum Power: 211 kW 283 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psi Pressure Dr50 kPa125 psi Maximum RecommendedOperating Differential PressureFull load 3600 kPa520 psi

PERFORMANCE CHARTS


126


244mm / 95/8” Computalog Commander™ MN45404:5 Lobe, 4.0 Stage

DIMENSIONAL DATA



Min: 311 mm 121/4inMax: 445 mm 171/2 in








12.25 in 14.75 in 17.5 in

B 0.39 1 - -

C 0.78 3 - -

D 1.15 5 1 -

E 1.5 7 3 -

F 1.83 9 5 -

G 2.12 11 6 2

H 2.38 12 8 3

I 2.6 14 9 4

J 2.77 15 10 5

K 2.9 15 11 6

L 2.97 16 11 7

M 3 16 12 7


127



Max: 170 rpm 170 rpmMaximum Torque: 9750 N-m 7200 ft-lbsMaximum Power: 174 kW 233 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiPressure Dr50 kPa125 psi Maximum RecommendedOperating Differential PressureFull load 3600 kPa520 psi

PERFORMANCE CHARTS


128



244mm / 95/8” Computalog Commander™ ME34603:4 Lobe, 6.0 Stage

DIMENSIONAL DATA



Min: 311 mm 121/4 inMax: 445 mm 171/2 in

Top Box Connection: 75/8 Reg 75/8 RegBottom Box Connection : 75/8 Reg 75/8 Reg






12.25 in 14.75 in 17.5 in

B 0.39 1 - -

C 0.78 2 - -

D 1.15 4 1 -

E 1.5 6 3 -

F 1.83 7 4 -

G 2.12 9 6 1

H 2.38 10 7 2

I 2.6 11 8 3

J 2.77 12 9 4

K 2.9 12 9 5

L 2.97 13 10 6

M 3 13 10 6


129



Max: 225 rpm 225 rpmMaximum Torque: 13,100 N-m 9700 ft-lbsMaximum Power: 291 kW 390 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiressure Dr50 kPa125 psi Maximum RecommendedOperating Differential PressureFull load 3600 kPa520 psi

PERFORMANCE CHARTS


130


244mm / 95/8” Computalog Commander™ LN56305:6 Lobe, 3.0 Stage

DIMENSIONAL DATA



Min: 311 mm 121/4 inMax: 445 mm 171/2 in








12.25 in 14.75 in 17.5 in

B 0.39 1 - -

C 0.78 3 - -

D 1.15 5 1 -

E 1.5 7 3 -

F 1.83 9 5 -

G 2.12 11 6 2

H 2.38 12 8 3

I 2.6 14 9 4

J 2.77 15 10 5

K 2.9 15 11 6

L 2.97 16 11 7

M 3 16 12 7


131



Max: 115 rpm 115 rpmMaximum Torque: 13,000 N-m 9600 ft-lbsMaximum Power: 130 kW 175 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiressure Dr50 kPa125 psi Maximum RecommendedOperating Differential PressureFull load 3600 kPa520 psi

PERFORMANCE CHARTS


132


244mm / 95/8” Computalog Commander™ LE67506:7 Lobe, 5.0 Stage

DIMENSIONAL DATA

Length to Kick Pad (A): 0.87 m 34 in

Length to Wear Pad (B): 2.28 m 90 inLength to Bend (C): 2.46 m 97 inOver-all Length (D): 9.14 m 360 inMaximum O.D.


Min: 311 mm 121/4 inMax: 445 mm 171/2 in







12.25 in 14.75 in 17.5 in

B 0.39 1 - -

C 0.78 2 - -

D 1.15 4 1 -

E 1.5 6 3 -

F 1.83 8 5 -

G 2.12 10 7 1

H 2.38 11 8 2

I 2.6 12 9 3

J 2.77 13 10 5

K 2.9 13 10 6

L 2.97 14 11 7

M 3 14 11 7



133



Max: 130 rpm 130 rpmMaximum Torque: 17,900 N-m 13,200 ft-lbsMaximum Power: 222 kW 297 hpMax. Allowable Bit Pressure Drop: 10,300 kPa 1500 psiPressure Dr50 kPa125 psi Maximum Recommended


PERFORMANCE CHARTS


134



135

Appendix #1 Motor Make-up Torques

Drilling Commander Screw-on Adjustable Adjustable Stator

Motor Stabilizer / Kick Assembly Connections

Size Thread Pad (N-m) (N-m)

(mm) Protector (N-m)

(N-m)

44 All - - 510 51060 All - - 1,360 1,36073 All - - 3,400 3,40086 All - - 4,100 4,10095 All - - 5,400 5,400121 All 13,600 13,600 13,600 13,600127 All 13,600 13,600 13,600 16,300159 NH1240 27,200 - 3° 27,200 21,700

2° 13,600All Others 27,200 27,200 27,200 21,700

171 NH 1240 27,200 - 3° 27,200 34,0002° 13,600

All Others 27,200 27,200 34,000 34,000203 All 27,200 27,200 54,400 48,800244 All 27,200 27,200 81,400 81,400

IMPERIAL

Drilling Commander Screw-on Adjustable Adjustable Stator

Motor Stabilizer / Kick Assembly Connections

Size Thread Pad (ft-lbs) (ft-lbs)

(inches) Protector (ft-lbs)

(ft-lbs)

1 3/4” All - - 375 3752 3/8” All - - 1,000 1,0002 7/8” All - - 2,500 2,5003 3/8” All - - 3,000 3,0003 3/4” All - - 4,000 4,0004 3/4” All 10,000 10,000 10,000 10,0005” All 10,000 10,000 10,000 12,000

6 1/4” NH1240 20,000 - 3° 20,000 16,0002° 10,000

All Others 20,000 20,000 20,000 16,0006 3/4” NH 1240 20,000 - 3° 20,000 25,000

2° 10,000All Others 20,000 20,000 25,000 25,000

8” All 20,000 20,000 40,000 36,0009 5/8” All 20,000 20,000 60,000 60,000

METRIC


136


Appendix #2 Adjustable Instructions3° Adjustable

S

FIGURE 2.2: 3° Adjustable Detail

POWERSECTION

POWERSECTION

POWERSECTION

LOCKEDIN

BENTPOSITION

ADJUSTINGPOSITION

LOCKEDIN

STRAIGHTPOSITION

BEARINGASSEMBLY

BEARINGASSEMBLY BEARING

ASSEMBLY

TONGSAREAS

0.500(MAX)

ADJUSTABLEBENT SUB TONGS AREAS

DO NOT USE TONGS ON ADJUSTABLE RING

ADJUSTABLE RING

BENT MANDREL ADAPTOR/PISTON HOUSING

I H G F E D C B A

I H G FDCB A E

FIGURE 2.1: 3° Adjustable Setting


137

Appendix #2 Continued

Adjustable Instructions3° Adjustable

SETTING THE ADJUSTABLE HOUSING1. Break tool below adjustable ring by placing rig floor

tongs at adjustable bent sub and bent mandreladaptor / piston housing.* NOW USE CHAIN TONGS ONLY.

2. Hold tool with chain tongs at adjustable ring and backoff bent mandrel adaptor / piston housing with chaintongs, until box face is 1/2” below adjustable ring face.(see Figures 2.1 and 2.2)* Ensure pins in adjustable ring are engaged until box

face clears shoulder.

3. Slide adjustable ring down until it bottoms on bentmandrel’s shoulder. Use punch if necessary.

4. Hold tool at adjustable bent sub with chain tongs andadjust by using chain tongs on adjustable ring. Increaseangle by rotating clockwise looking down from top oftool. Decrease angle by rotating counter-clockwise.Desired angle is achieved by aligning the same letterfrom both sides. (ie. if a 1.15 degree adjustable setting isdesired “D” on bent sub and “D” on adjustable ring mustbe exactly aligned before the adjustable ring is re-engaged.)

5. Slide adjustable ring up until pins are engaged fully withadjustable bent sub.* Ensure adjustable ring face and adjustable bent sub

face are in contact before proceeding.

6. Dope bent mandrel adaptor / piston housing box face.

7. Hold tool with chain tongs on adjustable ring & turnbent mandrel adaptor to adjustable ring.

8. Set tool in slips. Torque connection to the value specifiedin Appendix 1, by placing rig floor tongs at adjustablebent sub and bent mandrel adaptor / piston housing.

9. If using adjustable kick pad, the pad must be oriented tolow side of bend. This can be done by breaking threadprotector sleeve from bearing housing. The adjustablekick pad can then be slid down, oriented as desired andre-engaged. The thread protector sleeve is then torquedto the value as specified in Appendix 1.

ADJUSTABLE SETTINGSSTAMPED BEND STAMPED BENDLETTERS ANGLE LETTERS ANGLE

A 0° H 2.380°B 0.392° I 2.598°C 0.776° J 2.772°D 1.148° K 2.898°E 1.500° L 2.974°F 1.826° M 3.000°G 2.121°


138


Appendix #3Adjustable Instructions2° Adjustable

FIGURE 3.1: 2° Adjustable Setting

FIGURE 3.2: 2° Adjustable Detail


139


Adjustable Instructions2° Adjustable

SETTING THE ADJUSTABLE HOUSING

1. Break tool below adjustable ring by placing rig floortongs at retaining nut & adjustable bent mandrel.

2. Slide adjustable ring down, until locking lugs areunlocked from bent sub lugs. Use punch if necessary(see Figures 3.1 and 3.2).

3. Turn motor or bearing assembly until desired degreeof bend is reached by having numbers matching oneanother.

4. Screw retaining nut to engage lugs at chosenadjustment and torque as specified in Appendix 1.

5. Aligned numbers on the bent housing indicate bothangles setting and scribe line location (high side).

ADJUSTABLE SETTINGS

STAMPED ACTUAL BEND

NUMBER ANGLE

0 0°

0.25 0.390°

0.50 0.765°

0.75 1.111°

1.00 1.414°

1.25 1.663°

1.50 1.848°

1.75 1.962°

2.00 2.000°


140


Appendix #4Hydraulics Formulae

NOMENCLATURE

TFA Total Flow Area of Pump (mm2 or in2)

di Diameter of Pump Liner (mm or in)

dr Diameter of Duplex Pump Rod (mm or in)

Q Flow or Circulation Rate

(m3/min or gpm)

VE Volumetric Efficiency of Pumps

Generally: 90% - Duplex95% - Triplex

SPM SPM Strokes Per Minute of Pump

L Stroke Length of Piston (mm or in)

An Total Area of Bit Jets (mm2 or in2)

dj Diameter of each Bit Jet (mm or in)

Vn Nozzle Velocity (m/sec or ft/sec)

∆Pbit Pressure Loss at Bit (kPa or psi)

MW Mud Weight (kg/m3 or lb/gal)

Ar Area of Nozzle in Restrictor Block

(mm2 or in2)

∆PTotal Total Pressure Loss (kPa or psi)

∆Pmotor Estimated Pressure Loss of Drilling Motor

(kPa or psi)


141


Hydraulics Formulae

NOMENCLATURE (CONTINUED)

PHS Hydrostatic Pressure (kPa or psi)

d Depth (m or ft)

HHP Hydraulic Horsepower at Bit (kW or hp)

MHP Mechanical Horsepower from Drilling

Motor (kW or hp)

T Torque Output of Drilling Motor

(N•m or ft•lbs)

n Output RPM of Drilling Motor

TCP Total Circulating Pressure (kPa or psi)

SPP Stand Pipe Pressure (kPa or psi)

∆P Total Pressure Losses (kPa or psi)

KB Buoyancy Factor



Hydraulics Formulae

CALCULATIONS - METRIC

a) Duplex Pump, TFATFA= π(di

2 - dr2)

2

b) Triplex Pump, TFATFA= πdi

2 x 3

4

c) Flow Rate, QQ= TFA x VE x SPM x L

109

d) Total Nozzle Area, An

An= π(dj12 + dj2

2 + dj32 + …)

4

e) Nozzle Velocity, Vn

Vn= Q x 106

60 x An

f) Bit Pressure Loss, ∆Pbit

∆Pbit= Q2 x MW x 106

An2 x 6.496

142



143


Hydraulics Formulae

CALCULATIONS - METRIC (CONTINUED)

g) Restrictor Block Pressure Loss, ∆Prestr.

∆Prestr.= Q2 x MW x 106

Ar2 x 6.496

h) Total Pressure Loss,∆PTotal

∆PTotal = ∆Pbit x ∆Prestr. x ∆Pmotor

i) Hydrostatic Pressure, PHS

PHS= d x MW x 0.00981

j) Hydraulic Horsepower, HHP

HHP= Q x ∆Pbit

60k) Mechanical Horsepower, MHP

MHP= T x n9545

l) Total Circulating Pressure, TCPTCP= PHS + SPP – ∆PTotal

m) Buoyancy Factor,KB

KB= 7850 – MW7850


144



Hydraulics Formulae

CALCULATIONS - IMPERIAL

a) Duplex Pump, TFATFA= π(di

2 - dr2)

2

b) Triplex Pump, TFATFA= πdi

2 x 3

4

c) Flow Rate, QQ= TFA x VE x SPM x L

231d) Total Nozzle Area, An

An= π(dj12 + dj2

2 + dj32 + …)

4

e) Nozzle Velocity, Vn

Vn= 0.3208 x QAn

f) Bit Pressure Loss, ∆Pbit

∆Pbit= Q2 x MWAn

2 x 10858


145


Hydraulics Formulae

CALCULATIONS - IMPERIAL (CONTINUED)

g) Restrictor Block Pressure Loss, ∆Prestr.

∆Prestr.= Q2 x MWAr

2 x 10858

h) Total Pressure Loss, ∆PTotal

∆PTotal = ∆Pbit x ∆Prestr. x ∆Pmotor

i) Hydrostatic Pressure, PHS

PHS= d x MW x 0.052

j) Hydraulic Horsepower, HHP

HHP= Q x ∆Pbit

1714k) Mechanical Horsepower, MHP

MHP= T x n5250

l) Total Circulating Pressure, TCPTCP= PHS + SPP – ∆PTotal

m) Buoyancy Factor,KB

KB= 65.5 – MW65.5


146


Appendix #5 Rotor By-Pass Nozzle Instructions


All Computalog Commander™ M and L selections ofdrilling motors 95 mm (3-3/4”) and larger have rotors thathave a bore cut through the center to facilitate fluid flowrates greater than the capacity of the power section. Byusing a nozzle on this bore, partial fluid flow can passbetween the rotor and stator, up to the maximum allow-able capacity, with the additional fluid flow goingthrough the rotor.

At start-up, as fluid flow rate is increased, all fluid willpass through the rotor. The friction between the rotorand stator will prevent it from rotating. EventuaIIy thepressure drop across the rotor nozzle will be greater than

FIGURE 5.1: Drilling Motor Assembly


147

the pressure drop required to overcome the frictionallosses between the rotor and the stator, and the drillingmotor will start to rotate. If the correct nozzle has beenselected, once the full flow rate is achieved and therequired pressure differential is achieved, the drillingmotor should have a portion of the flow approximatelyequal to its maximum specified capacity passing betweenthe rotor and the stator. The remaining portion of theflow will pass through the rotor. For equilibrium, duringall operations, the pressure drop across the rotor and sta-tor wiII be equal to the pressure drop across the rotornozzle.

Therefore, the drilling motor will operate in the follow-ing way. Once full flow rate is achieved, and no weighthas been applied to the bit, excessive fluid flow will passbetween the rotor and stator. Once weight is applied onthe bit, the differential on the rotor and stator will be atthe value that the nozzle was sized for, splitting the flowas desired.

Therefore, extra precautions should be observed whenworking with Computalog Commander™ drilling motorsusing rotor-by-pass. Extra care should be taken when nothaving weight on bit and the length of time this occursmust be minimized. Failing to do so will cause prematurewear and damage to the stator from excessive flow.

In order to size a nozzle for a specific situation, three fac-tors are required:

1. Total Required Flow Rate, Qr : This is the total flowrate of the drilling fluid as required for properdrilling operation

2. Required Motor Pressure Drop, Pm : The estimatedpressure drop (differential pressure) of the drillingmotor when down-hole

3. Mud Weight, MW:

Once these factors are known, the required nozzlesize can be selected in the following way. First, theflow rate that is to pass through the rotor nozzle Qnis calculated. To determine this value subtract themaximum flow rate capacity of the size and seriesComputalog Commander™ drilling motor to be usedfrom the total required flow rate Qr.

The nozzle area required for this operation can thenbe calculated using the following formula:


Rotor By-Pass Nozzle Instructions



148


(Metric)

(Imperial)

The size of nozzle required can then be determinedby looking at the enclosed table for nozzle sizes inAppendix 12.

The design of the nozzle assemblies vary for the dif-ferent sizes of drilling motors, so instructions forinstalling each one are described seperately below.

95 mm - 171 mm (3-3/4” - 6-3/4”) ComputalogCommander™ Drilling Motors (see Figure 5.1 and 5.2)

1 Using the rig tongs, break the top-most connectionof the drilling motor, as indicated in Figure 5.1.Unscrew the dump sub assembly and set it aside.

2. Using a screwdriver, remove the spiral woundretaining ring from inside the exposed top end of therotor.

3 . Break the blank Smith bit nozzle from the rotor byusing the appropriate Smith bit nozzle wrench andunscrew the blank nozzle from the rotor (see Table5.1 for nozzle specifications). Ensure the o-ring is ingood condition and still in the groove beyond thethread in the rotor.

4. Insert the new nozzle and torque as specified withthe appropriate Smith bit nozzle wrench.

FIGURE 5.2



An = Qn2 x MW x 106

Pm x 6.496√An = Qn

2 x MWPm x 10858√


149

5. Re-install the spiral wound retaining ring into thegroove in the rotor. Ensure it is securely installed.

6. Screw the dump sub body back into the stator andtorque to the value indicated in Appendix 1.

203 mm - 244 mm (8” - 9-5/8”) ComputalogCommander™ Drilling Motors (see Figure 5.1 and 5.3)

1. Using the rig tongs, break the top-most connectionof the drilling motor, as illustrated in Figure 5.1.Unscrew the dump sub assembly and set it aside.

2. Break the blank Smith bit nozzle from the rotor usingthe appropriate Smith bit nozzle wrench, andunscrew from the rotor (see Table 5.1 for nozzlespecifications).

3. Insert the new nozzle and torque as specified withthe appropriate Smith bit nozzIe wrench.

4. Screw the dump sub body back into the stator andtorque to the value indicated in Appendix 1.




FIGURE 5.3

TABLE 5.1

Motor Size Nozzle Torque(mm) (in) Type (N-m) (ft-lbs)

95 3-3/4 Smith Series 85 200 150121 4-3/4 Smith Series 95 270 200159 6-1/4 Smith Series 95 270 200171 6-3/4 Smith Series 95 270 200203 8 Smith Series 85 200 150244 9-5/8 Smith Series 95 270 200


150


Appendix #6 Build Rate Reference Data(Metric)

Build Build Arc Length Bending StressRate Radius for 90 deg Factor

(deg/30m) (m) (m) (Kpa/mm of OD)

1 1718.9 2700.0 602 859.4 1350.0 1203 573.0 900.0 1804 429.7 675.0 2405 343.8 540.0 3016 286.5 450.0 3617 245.6 385.7 4218 214.9 337.5 4819 191.0 300.0 54110 171.9 270.0 60111 156.3 245.5 66112 143.2 225.0 72113 132.2 207.7 78214 122.8 192.9 84215 114.6 180.0 90216 107.4 168.8 96217 101.1 158.8 1,02218 95.5 150.0 1,08219 90.5 142.1 1,14220 85.9 135.0 1,20221 81.9 128.6 1,26322 78.1 122.7 1,32323 74.7 117.4 1,38324 71.6 112.5 1,44325 68.8 108.0 1,50326 66.1 103.8 1,56327 63.7 100.0 1,62328 61.4 96.4 1,68329 59.3 93.1 1,74430 57.3 90.0 1,80440 43.0 67.5 2,40550 34.4 54.0 3,00660 28.6 45.0 3,60770 24.6 38.6 4,20980 21.5 33.8 4,81090 19.1 30.0 5,411

100 17.2 27.0 6,012


151


Build Rate Reference Data(Imperial)

Build Build Arc Length Bending StressRate Radius for 90 deg Factor

(deg/100 ft) (ft) (ft) (psi/in of OD)

1 5639.7 8858.7 2212 2819.7 4429.4 4433 1880.0 2952.9 6644 1409.8 2214.7 8865 1128.0 1771.7 1,1076 940.0 1476.5 1,3297 805.8 1265.5 1,5508 705.1 1107.3 1,7729 626.7 984.3 1,99310 564.0 885.9 2,21511 512.8 805.5 2,43612 469.8 738.2 2,65813 433.7 681.5 2,87914 402.9 632.9 3,10115 376.0 590.6 3,32216 352.4 553.8 3,54417 331.7 521.0 3,76518 313.3 492.2 3,98719 296.9 466.2 4,20820 281.8 442.9 4,43021 268.7 421.9 4,65122 256.2 402.6 4,87323 245.1 385.2 5,09424 234.9 369.1 5,31625 225.7 354.3 5,53726 216.9 340.6 5,75927 209.0 328.1 5,98028 201.5 316.3 6,20229 194.6 305.5 6,42330 188.0 295.3 6,64540 141.1 221.5 8,86050 112.9 177.2 11,07460 93.8 147.6 13,28970 80.7 126.6 15,50480 70.5 110.9 17,71990 62.7 98.4 19,934

100 56.4 88.6 22,149


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Computalog Commander™ Motor HandbookRe

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le13

9.7

*17,

589

*17,

589

*17,

589

*17,

589

*17,

589

146.

0*2

4,56

6*2

4,56

6*2

4,56

6*2

4,56

624

,269

152.

4*3

2,00

4*3

2,00

431

,222

27,0

0824

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158.

737

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34,2

6431

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27,0

0824

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165.

137

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34,2

6431

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27,0

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41 /2Ex

tra

Ho

le14

6.0

*24,

049

*24,

049

*24,

049

*24,

049

APl

NC

46

152.

4*3

1,75

5*3

1,75

530

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27,5

384

APl

lF15

8.7

37,9

9134

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30,4

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41 /2Se

mi l

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30,4

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bl.

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amlin

e17

1.4

37,9

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41 /2M

od

. Op

en


156



(Metric)

Co

nn

ecti

on

Min

imu

m M

ake-

up

To

rqu

e2N

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ze,

OD

,B

ore

of

Dri

ll C

olla

r, m

min

.Ty

pe

(mm

)57

.163

.571

.476

.282

.541 /2

H-9

0414

6.0

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431

*24,

431

*24,

431

*24,

431

152.

4*3

2,10

7*3

2,10

731

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28,5

4115

8.7

38,9

5535

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31,4

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165.

138

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35,7

9031

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28,5

4117

1.4

38,9

5535

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31,4

0028

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5H

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158.

7*3

4,38

3*3

4,38

3*3

4,38

3*3

4,38

332

,523

165.

1*4

3,24

4*4

3,24

439

,861

36,8

3332

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171.

447

,849

44,5

0439

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36,8

3332

,523

177.

847

,849

44,5

0439

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36,8

3332

,523

41 /2A

Pl lF

158.

7*3

1,18

8*3

1,18

8*3

1,18

8*3

1,18

8*3

1,18

8A

PlN

C 5

016

5.1

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240

*40,

240

*40,

240

*40,

240

36,1

675

Extr

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171.

4*4

9,81

448

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43,7

6240

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675

Mo

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177.

852

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48,5

7043

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40,6

2836

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51 /2D

bl.

Stre

amlin

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52,0

3548

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43,7

6240

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675

Sem

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190.

552

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48,5

7043

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40,6

2836

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51 /2H

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171.

4*4

6,78

7*4

6,78

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6,78

746

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41,7

3317

7.8

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935

54,3

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184.

157

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46,2

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190.

557

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54,3

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46,2

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157


(Metric)

Co

nn

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on

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imu

m M

ake-

up

To

rqu

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OD

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ore

of

Dri

ll C

olla

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min

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pe

(mm

)57

.163

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.476

.282

.551 /2

APl

Reg

ula

r17

1.4

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306

*43,

306

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306

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306

41,3

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445

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445

49,1

2845

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41,3

4518

4.1

57,5

9754

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49,1

2845

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41,3

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0.5

57,5

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49,1

2845

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41,3

4551 /2

APl

Fu

ll H

ole

177.

8*4

4,41

9*4

4,41

9*4

4,41

9*4

4,41

9*4

4,41

918

4.1

*55,

586

*55,

586

*55,

586

*55,

586

*55,

586

190.

5*6

7,33

1*6

7,33

164

,748

61,2

7056

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196.

873

,911

70,0

7864

,748

61,2

7056

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APl

NC

56

184.

1*5

4,90

8*5

4,90

8*5

4,90

8*5

4,90

819

0.5

*66,

517

65,3

7961

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57,0

2419

6.8

70,6

5865

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3457

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203.

270

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65,3

7961

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57,0

2465 /8

APl

Reg

ula

r19

0.5

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909

*62,

909

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909

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196.

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203.

277

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2768

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63,6

3620

9.5

77,8

1572

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68,7

4563

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158



(Metric)

Co

nn

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imu

m M

ake-

up

To

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OD

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of

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ll C

olla

r, m

min

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pe

(mm

)63

.571

.476

.282

.588

.995

.265 /8

H-9

0419

0.5

*63,

057

*63,

057

*63,

057

*63,

057

196.

8*7

5,52

9*7

5,52

972

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67,5

9420

3.2

81,7

8576

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72,7

1067

,594

209.

581

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76,2

9672

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67,5

94A

PlN

C 6

120

3.2

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747

*74,

747

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747

*74,

747

209.

5*8

8,72

2*8

8,72

2*8

8,72

283

,551

215.

998

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92,7

3588

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83,5

5122

2.2

98,5

2792

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88,9

5183

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228.

698

,527

92,7

3588

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83,5

5151 /2

APl

lF20

3.2

*76,

795

*76,

795

*76,

795

*76,

795

*76,

795

209.

5*9

1,02

1*9

1,02

1*9

1,02

185

,933

80,0

2921

5.9

101,

178

95,2

8391

,431

85,9

3380

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222.

210

1,17

895

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91,4

3185

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80,0

2922

8.6

101,

178

95,2

8391

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85,9

3380

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234.

910

1,17

895

,283

91,4

3185

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80,0

2965 /8

APl

Fu

ll H

ole

215.

9*9

1,90

9*9

1,90

9*9

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9*9

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9*9

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222.

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07,8

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07,8

4810

4,00

097

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8.6

120,

099

113,

878

109,

809

104,

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97,7

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912

0,09

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3,87

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9,80

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91,0

9024

1.3

120,

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113,

878

109,

809

104,

000

97,7

5791

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159


(Metric)

Co

nn

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on

Min

imu

m M

ake-

up

To

rqu

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OD

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ore

of

Dri

ll C

olla

r, m

min

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pe

(mm

)63

.571

.476

.282

.588

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PlN

C 7

022

8.6

*102

,745

*102

,745

*102

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*102

,745

*102

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234.

9*1

20,4

00*1

20,4

00*1

20,4

00*1

20,4

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20,4

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20,4

0024

1.3

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137,

082

130,

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123,

357

247.

615

4,16

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7,56

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3,25

113

7,08

213

0,44

912

3,35

725

4.0

154,

168

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569

143,

251

137,

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357

260.

315

4,16

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7,56

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213

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3,35

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PIN

C 7

725

4.0

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*146

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*146

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*146

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*146

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260.

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91*1

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68,1

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9126

6.7

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190,

476

183,

197

175,

409

273.

020

9,19

620

1,96

719

7,23

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0,47

618

3,19

717

5,40

927

9.4

209,

196

201,

967

197,

239

190,

476

183,

197

175,

409

7H

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203.

2*7

2,47

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2,47

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2,47

4*7

2,47

4*7

2,47

4*7

2,47

420

9.5

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417

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417

*86,

417

*86,

417

82,6

6576

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215.

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7797

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93,9

1188

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82,6

6576

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75 /8A

Pl R

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lar

215.

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1,89

4*8

1,89

4*8

1,89

4*8

1,89

4*8

1,89

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1,89

422

2.2

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848

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848

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848

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848

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848

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228.

6*1

14,4

89*1

14,4

89*1

14,4

8911

4,18

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7,83

610

1,04

823

4.9

130,

565

124,

236

120,

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114,

189

107,

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101,

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241.

313

0,56

512

4,23

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0,09

911

4,18

910

7,83

610

1,04

8


160



(Metric)

Co

nn

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on

Min

imu

m M

ake-

up

To

rqu

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ze,

OD

,B

ore

of

Dri

ll C

olla

r, m

min

.Ty

pe

(mm

)63

.571

.476

.282

.588

.995

.275 /8

H-9

0422

8.6

*98,

997

*98,

997

*98,

997

*98,

997

*98,

997

*98,

997

234.

9*1

16,6

09*1

16,6

09*1

16,6

09*1

16,6

09*1

16,6

09*1

16,6

0924

1.3

*134

,915

*134

,915

*134

,915

*134

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*134

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130,

544

85 /8A

Pl R

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lar

254.

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48,2

51*1

48,2

51*1

48,2

51*1

48,2

51*1

48,2

51*1

48,2

5126

0.3

*169

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*169

,834

*169

,834

*169

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169,

523

266.

7*1

92,2

08*1

92,2

0819

1,35

218

4,58

917

7,31

016

9,52

385 /8

H-9

0426

0.3

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*153

,860

*153

,860

*153

,860

*153

,860

*153

,860

266.

7*1

76,3

41*1

76,3

41*1

76,3

41*1

76,3

41*1

76,3

41*1

76,3

417

H-9

0422

2.2

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279

*92,

179

91,1

8885

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78,8

14(w

ith

low

to

rqu

e fa

ce)

228.

610

0,65

096

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91,1

8885

,206

78,8

1475 / 8

APl

Reg

ula

r23

4.9

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109

*99,

109

*99,

109

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109

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111,

796

104,

789

247.

612

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8,35

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1,79

610

4,78

925

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449

118,

352

111,

796

104,

789

75 /8H

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6*1

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84*1

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84*1

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84*1

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254.

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69*1

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3,95

326

0.3

158,

780

154,

354

148,

033

141,

230

133,

953

266.

715

8,78

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4,35

414

8,03

314

1,23

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3,95

3


161


(Metric)

*Not

es:

1.To

rque

figu

res

prec

eded

by

an a

ster

isk

indi

cate

that

the

wea

ker

mem

ber

for

the

corr

espo

ndin

g ou

tsid

e di

amet

er (

OD

) an

d bo

re is

the

BO

X.F

or a

ll ot

her

torq

ue v

alue

s th

e w

eake

r m

embe

r is

the

PIN

.2.

In e

ach

conn

ectio

n si

ze a

nd ty

pe g

roup

, tor

que

valu

es a

pply

to a

llco

nnec

tion

type

s in

the

grou

p, w

hen

used

with

the

sam

e dr

ill c

olla

r ou

t-si

de d

iam

eter

and

bor

e, i.

e.23 ⁄8

AP

I IF,

AP

I NC

26,

and

27 ⁄8

Slim

Hol

eco

nnec

tions

use

d w

ith 3

1 ⁄2x

11 ⁄4dr

ill c

olla

rs a

ll ha

ve th

e sa

me

min

imum

mak

e-up

torq

ue o

f 460

0 ft.

lb.,

and

the

BO

X is

the

wea

ker

mem

ber.

3.S

tres

s-re

lief f

eatu

res

are

disr

egar

ded

for

mak

e-up

torq

ue.

1 Bas

is o

f cal

cula

tions

for

reco

mm

ende

d m

ake-

up to

rque

ass

umed

the

use

of a

thre

ad c

ompo

und

cont

aini

ng 4

0-60

% b

y w

eigh

t of f

inel

y po

w-

dere

d m

etal

ic z

inc

or 6

0% b

y w

eigh

t of f

inel

y po

wde

red

met

allic

lead

,w

ith n

ot m

ore

than

0.3

% to

tal a

ctiv

e su

lfur

(Ref

eren

ce th

e ca

utio

nre

gard

ing

the

use

of h

azar

dous

mat

eria

ls in

App

endi

x F

of S

peci

ficat

ion

7) a

pplie

d th

orou

ghly

to a

ll th

read

s an

d sh

ould

ers

and

usin

g th

e m

odi-

fied

Scr

ew J

ack

form

ula

in A

ppen

dix

A, p

arag

raph

A.8

, and

a u

nit

stre

ss o

f 62,

500

psi i

n th

e bo

x or

pin

, whi

chev

er is

wea

ker.

2 Nor

mal

torq

ue r

ange

is ta

bula

ted

valu

e pl

us 1

0%.H

ighe

r to

rque

val

ues

may

be

used

und

er e

xtre

me

cond

ition

s.3 M

ake-

up to

rque

for

27 ⁄8PA

C c

onne

ctio

n is

bas

ed o

n 87

,500

psi s

tres

san

d ot

her

fact

ors

liste

d in

foot

note

1.

4 Mak

e-up

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r H

-90

conn

ectio

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bas

ed o

n 56

,200

psi

str

ess

and

othe

r fa

ctor

s lis

ted

in fo

otno

te 1

.

Co

nn

ecti

on

Min

imu

m M

ake-

up

To

rqu

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-mSi

ze,

OD

,B

ore

of

Dri

ll C

olla

r, m

min

.Ty

pe

(mm

)63

.571

.476

.282

.588

.995

.285 /8

APl

Reg

ula

r27

3.0

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9.4

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,174

*177

,174

*177

,174

*177

,174

285.

720

0,14

019

3,10

818

5,53

817

7,43

785 /8

H-9

0427

3.0

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*126

,037

*126

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*126

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h lo

w t

orq

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face

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9.4

*150

,200

*150

,200

*150

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*150

,201

285.

7*1

75,1

76*1

75,1

76*1

75,1

76*1

75,1

76


162

Computalog Commander™ Motor HandbookRe

com

men

ded

Mak

e-up

Tor

que

for R

otar

y Sh

ould

ered

Dril

l Col

lar C

onne

ctio

nsTa

ken

from

API

Rec

omm

ende

d Pr

actic

e 7G

(SEE

FO

OTN

OTE

S FO

R U

SE O

F TH

IS T

AB

LE)


(Imperial)C

on

nec

tio

nM

inim

um

Mak

e-u

p T

orq

ue2

ft-l

bSi

ze,

OD

,B

ore

of

Dri

ll C

olla

r, in

ches

in.

Typ

e(i

n.)

111 /4

11 /213 /4

221 /4

APl

NC

23

3*2

,508

*2,5

08*2

,508

31 /8*3

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302,

647

31 /44,

000

3,38

72,

647

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411,

749

31 /8*3

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41,

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31 /43,

285

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31 /8*4

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12,

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31 /45,

206

4,15

12,

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23 /8A

Pl lF

31 /2*4

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063,

697

APl

NC

26

33 /45,

501

4,66

83,

697

27 /8R

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31 /2*3

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38*3

,838

33 /45,

766

4,95

14,

002

37 /85,

766

4,95

14,

002


163


(Imperial)

Co

nn

ecti

on

Min

imu

m M

ake-

up

To

rqu

e2ft

-lb

Size

,O

D,

Bo

re o

f D

rill

Co

llar,

inch

esin

.Ty

pe

(in

.)11 /4

11 /213 /4

221 /4

21 /227 / 8

Extr

a H

ole

33 / 4*4

,089

*4,0

89*4

,089

31 / 2D

bl.

Stre

amlin

e37 / 8

*5,3

52*5

,352

*5,3

5227 /8

Mo

d. O

pen

41 /8*8

,059

*8,0

597,

433

27 / 8A

Pl lF

37 / 8*4

,640

*4,6

40*4

,640

*4,6

40A

PlN

C 3

141 / 8

*7,3

90*7

,390

*7,3

906,

853

31 /2R

egu

lar

41 /8*6

,466

*6,4

66*6

,466

*6,4

665,

685

41 / 4*7

,886

*7,8

86*7

,886

7,11

55,

685

41 / 210

,471

9,51

48,

394

7,11

55,

685

31 /2Sl

im H

ole

41 /4*8

,858

*8,8

588,

161

6,85

35,

391

41 / 210

,286

9,30

78,

161

6,85

35,

391

APl

NC

35

41 / 2*9

,038

*9,0

38*9

,038

7,41

143 /4

12,2

7310

,826

9,20

27,

411

512

,273

10,8

269,

202

7,41

131 / 2

Extr

a H

ole

41 / 4*5

,161

*5,1

61*5

,161

*5,1

614

Slim

Ho

le41 /2

*8,4

79*8

,479

*8,4

798,

311

31 /2M

od

. Op

en43 /4

*12,

074

11,8

0310

,144

8,31

15

13,2

8311

,803

10,1

448,

311

51 /413

,283

11,8

0310

,144

8,31

1


164



(Imperial)

Co

nn

ecti

on

Min

imu

m M

ake-

up

To

rqu

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-lb

Size

,O

D,

Bo

re o

f D

rill

Co

llar,

inch

esin

.Ty

pe

(in

.)13 /4

2

21 /4

21 /2213

/1631 /2

APl

lF43 /4

*9,9

86*9

,986

*9,9

86*9

,986

8,31

5A

PlN

C 3

85

*13,

949

*13,

949

12,9

0710

,977

8,31

541 /2

Slim

Ho

le51 /4

16,2

0714

,643

12,9

0710

,977

8,31

551 /2

16,2

0714

,643

12,9

0710

,977

8,31

531 /2

H-9

0443 /4

*8,7

86*8

,786

*8,7

86*8

,786

*8,7

865

*12,

794

*12,

794

*12,

794

*12,

794

10,4

0851 /4

*17,

094

16,9

2915

,137

13,1

5110

,408

51 /218

,522

16,9

2915

,137

13,1

5110

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4Fu

ll H

ole

5*1

0,91

0*1

0,91

0*1

0,91

0*1

0,91

0*1

0,91

0A

PlN

C 4

051 /4

*15,

290

*15,

290

*15,

290

14,9

6912

,125

4M

od

. Op

en51 /2

*19,

985

18,8

8617

,028

14,9

6912

,125

41 /2D

bl.

Stre

amlin

e53 /4

20,5

3918

,886

17,0

2814

,969

12,1

256

20,5

3918

,886

17,0

2814

,969

12,1

254

H-9

0451 /4

*12,

590

*12,

590

*12,

590

*12,

590

*12,

590

51 /2*1

7,40

1*1

7,40

1*1

7,40

1*1

7,40

116

,536

53 /4*2

2,53

1*2

2,53

121

,714

19,5

4316

,536

625

,408

23,6

7121

,714

19,5

4316

,536

61 /425

,408

23,6

7121

,714

19,5

4316

,536


165


(Imperial)

Co

nn

ecti

on

Min

imu

m M

ake-

up

To

rqu

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-lb

Size

,O

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Bo

re o

f D

rill

Co

llar,

inch

esin

.Ty

pe

(in

.)13 /4

2

21 /4

21 /2213

/163

41 /2À

PI R

egu

lar

51 /2*1

5,57

6*1

5,57

6*1

5,57

6*1

5,57

6*1

5,57

653 /4

*20,

609

*20,

609

*20,

609

19,6

0116

,629

625

,407

23,6

8621

,749

19,6

0116

,629

61 /425

,407

23,6

8621

,749

19,6

0116

,629

API

NC

44

53 /4*2

0,89

5*2

0,89

5*2

0,89

5*2

0,89

518

,161

6*2

6,45

325

,510

23,4

9321

,257

18,1

6161 /4

27,3

0025

,510

23,4

9321

,257

18,1

6161 /2

27,3

0025

,510

23,4

9321

,257

18,1

6141 /2

API

Fu

ll H

ole

51 /2*1

2,97

3*1

2,97

3*1

2,97

3*1

2,97

3*1

2,97

353 /4

*18,

119

*18,

119

*18,

119

*18,

119

17,9

006

*23,

605

*22,

605

23,0

2819

,921

17,9

0061 /4

27,2

9425

,272

22,0

2819

,921

17,9

0061 /2

27,2

9425

,272

22,0

2819

,921

17,9

0041 /2

Extr

a H

ole

53 /4*1

7,73

8*1

7,73

8*1

7,73

8*1

7,73

8A

PIN

C 4

66

*23,

422

*23,

422

22,4

2620

,311

4A

Pl lF

61 /428

,021

25,6

7622

,426

20,3

1141 /2

Sem

i lF

61 /228

,021

25,6

7622

,426

20,3

115

Db

l. St

ream

line

63 /428

,021

25,6

7622

,426

20,3

1141 /2

Mo

d. O

pen


166



(Imperial)

Co

nn

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on

Min

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To

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Size

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Bo

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rill

Co

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pe

(in

.)21 /4

21 /2213

/163

31 /441 /2

H-9

0453 /4

*18,

019

*18,

019

*18,

019

*18,

019

6*2

3,68

1*2

3,68

123

,159

21,0

5161 /4

28,7

3226

,397

23,1

5921

,051

61 /228

,732

26,3

9723

,159

21,0

5163 / 4

28,7

3226

,397

23,1

5921

,051

5H

-904

61 /4*2

5,36

0*2

5,36

0*2

5,36

0*2

5,36

023

,988

61 /2*3

1,89

5*3

1,89

529

,400

27,1

6723

,988

63 / 435

,292

32,8

2529

,400

27,1

6723

,988

735

,292

32,8

2529

,400

27,1

6723

,988

41 /2A

Pl lF

61 /4*2

3,00

4*2

3,00

4*2

3,00

4*2

3,00

4*2

3,00

4A

Pl

NC

50

61 / 2*2

9,67

9*2

9,67

9*2

9,67

9*2

9,67

926

,675

5Ex

tra

Ho

le63 /4

*36,

742

35,8

2432

,277

29,9

6626

,675

5M

od

. Op

en7

38,3

7935

,824

32,2

7729

,966

26,6

7551 /2

Db

l. St

ream

line

71 /438

,379

35,8

2432

,277

29,9

6626

,675

5Se

mi-

lF71 /2

38,3

7935

,824

32,2

7729

,966

26,6

7551 /2

H-9

0463 /4

*34,

508

*34,

508

*34,

508

34,1

4230

,781

7*4

1,99

340

,117

36,5

0134

,142

30,7

8171 /4

42,7

1940

,117

36,5

0134

,142

30,7

8171 /2

42,7

1940

,117

36,5

0134

,142

30,7

81


167


(Imperial)

Co

nn

ecti

on

Min

imu

m M

ake-

up

To

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Size

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Co

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pe

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.)21 /4

21 /2213

/163

31 /451 /2

APl

Reg

ula

r63 /4

*31,

941

*31,

941

*31,

941

*31,

941

30,4

957

*39,

419

*39,

419

36,2

3533

,868

30,4

9571 /4

42,4

8139

,866

36,2

3533

,868

30,4

9571 /2

42,4

8139

,866

36,2

3533

,868

30,4

9551 / 2

APl

Fu

ll H

ole

7*3

2,76

2*3

2,76

2*3

2,76

2*3

2,76

2*3

2,76

271 /4

*40,

998

*40,

998

*40,

998

*40,

998

*40,

998

71 /2*4

9,66

1*4

9,66

147

,756

45,1

9041

,533

73 / 454

,515

51,6

8747

,756

45,1

9041

,533

APl

NC

56

71 /4*4

0,49

8*4

0,49

8*4

0,49

8*4

0,49

871 /2

*49,

060

48,2

2145

,680

42,0

5873 / 4

52,1

1548

,221

45,6

8042

,058

852

,115

48,2

2145

,680

42,0

5865 /8

APl

Reg

ula

r71 /2

*46,

399

*46,

399

*46,

399

*46,

399

73 /4*5

5,62

753

,346

50,7

0446

,936

857

,393

53,3

4650

,704

46,9

3681 /4

57,3

9353

,346

50,7

0446

,936


168



(Imperial)

Co

nn

ecti

on

Min

imu

m M

ake-

up

To

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Size

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Bo

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f D

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Co

llar,

inch

esin

.Ty

pe

(in

.)21 /2

213/16

3

31 /4

31 /233 /4

65 /8H

-904

71 /2*4

6,50

9*4

6,50

9*4

6,50

9*4

6,50

973 /4

*55,

708

*55,

708

53,6

2949

,855

860

,321

56,2

7353

,629

49,8

5581 /4

60,3

2156

,273

53,6

2949

,855

APl

NC

61

8*5

5,13

1*5

5,13

1*5

5,13

1*5

5,13

181 /4

*65,

438

*65,

438

*65,

438

61,6

2481 /2

72,6

7068

,398

65,6

0761

,624

83 /472

,670

68,3

9865

,607

61,6

249

72,6

7068

,398

65,6

0761

,624

51 /2A

Pl lF

8*5

6,64

1*5

6,64

1*5

6,64

1*5

6,64

1*5

6,64

181 /4

*67,

133

*67,

133

*67,

133

63,3

8159

,027

81 /274

,626

70,2

7767

,436

63,3

8159

,027

83 /474

,626

70,2

7767

,436

63,3

8159

,027

974

,626

70,2

7767

,436

63,3

8159

,027

91 /474

,626

70,2

7767

,436

63,3

8159

,027

65 /8A

Pl F

ull

Ho

le81 /2

*67,

789

*67,

789

*67,

789

*67,

789

*67,

789

67,1

8483 /4

*79,

544

*79,

544

*79,

544

76,7

0672

,102

67,1

849

88,5

8283

,992

80,9

9176

,706

72,1

0267

,184

91 /488

,582

83,9

9280

,991

76,7

0672

,102

67,1

8491 /2

88,5

8283

,992

80,9

9176

,706

72,1

0267

,184


169


(Imperial)

Co

nn

ecti

on

Min

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m M

ake-

up

To

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Size

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Bo

re o

f D

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Co

llar,

inch

esin

.Ty

pe

(in

.)21 /2

213/16

3

31 /4

31 /233 /4

APl

NC

70

9*7

5,78

1*7

5,78

1*7

5,78

1*7

5,78

1*7

5,78

1*7

5,78

191 /4

*88,

802

*88,

802

*88,

802

*88,

802

*88,

802

*88,

802

91 /2*1

02,3

54*1

02,3

54*1

02,3

5410

1,10

796

,214

90,9

8493 /4

113,

710

108,

841

105,

657

101,

107

96,2

1490

,984

1011

3,71

010

8,84

110

5,65

710

1,10

796

,214

90,9

8410

1 /411

3,71

010

8,84

110

5,65

710

1,10

796

,214

90,9

84A

PlN

C 7

710

*108

,194

*108

,194

*108

,194

*108

,194

*108

,194

*108

,194

101 /4

*124

,051

*124

,051

*124

,051

*124

,051

*124

,051

*124

,051

101 /2

*140

,491

*140

,491

*140

,491

140,

488

134,

119

129,

375

103 /4

154,

297

148,

965

145,

476

140,

488

135,

119

129,

375

1115

4,29

714

8,96

514

5,47

614

0,48

813

5,11

912

9,37

57

H-9

048

*53,

454

*53,

454

*53,

454

*53,

454

*53,

454

*53,

454

81 /4*6

3,73

8*6

3,73

8*6

3,73

8*6

3,73

860

,971

56,3

8281 /2

*74,

478

72,0

6669

,265

65,2

6760

,971

56,3

8275 /8

APl

Reg

ula

r81 /2

*60,

402

*60,

402

*60,

402

*60,

402

*60,

402

*60,

402

83 /4*7

2,16

9*7

2,16

9*7

2,16

9*7

2,16

9*7

2,16

9*7

2,16

99

*84,

442

*84,

442

*84,

442

84,2

2179

,536

74,5

2991 /4

96,3

0191

,633

88,5

8084

,221

79,5

3674

,529

91 /296

,301

91,6

3388

,580

84,2

2179

,536

74,5

29


170



(Imperial)

Co

nn

ecti

on

Min

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m M

ake-

up

To

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Size

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Bo

re o

f D

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Co

llar,

inch

esin

.Ty

pe

(in

.)21 /2

213/16

3

31 /4

31 /233 /4

75 /8H

-904

9*7

3,01

7*7

3,01

7*7

3,01

7*7

3,01

7*7

3,01

7*7

3,01

791 /4

*86,

006

*86,

006

*86,

006

*86,

006

*86,

006

*86,

006

91 /2*9

9,50

8*9

9,50

8*9

9,50

8*9

9,50

8*9

9,50

896

,285

85 /8A

Pl R

egu

lar

10*1

09,3

45*1

09,3

45*1

09,3

45*1

09,3

45*1

09,3

45*1

09,3

4510

1 / 4*1

25,2

63*1

25,2

63*1

25,2

63*1

25,2

63*1

25,2

6312

5,03

410

1 /2*1

41,7

67*1

41,7

6714

1,13

413

6,14

613

0,77

712

5,03

485 /8

H-9

0410

1 /4*1

13,4

82*1

13,4

82*1

13,4

82*1

13,4

82*1

13,4

82*1

13,4

8210

1 / 2*1

30,0

63*1

30,0

63*1

30,0

63*1

30,0

63*1

30,0

63*1

30,0

637

H-9

0483 /4

*68,

061

*68,

061

67,2

5762

,845

58,1

31(w

ith

low

to

rqu

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ce)

974

,235

71,3

6167

,257

62,8

4558

,131

75 / 8A

Pl R

egu

lar

91 / 4*7

3,09

9*7

3,09

9*7

3,09

9*7

3,09

9(w

ith

low

to

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ce)

91 /2*8

6,46

3*8

6,46

382

,457

77,2

8993 /4

91,7

8987

,292

82,4

5777

,289

1091

,789

87,2

9282

,457

77,2

8975 /8

H-9

0493 /4

*91,

667

*91,

667

*91,

667

*91,

667

*91,

667

(wit

h lo

w t

orq

ue

face

)10

*106

,260

*106

,260

*106

,260

104,

171

98,8

0410

1 /411

7,11

211

3,85

110

9,18

810

4,17

198

,804

101 /2

117,

112

113,

851

109,

188

104,

171

98,8

04


171


(Imperial)

*Not

es:

1.To

rque

figu

res

prec

eded

by

an a

ster

isk

indi

cate

that

the

wea

ker

mem

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for

the

corr

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g ou

tsid

e di

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er (

OD

) an

d bo

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the

BO

X.F

or a

ll ot

her

torq

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alue

s th

e w

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r m

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r is

the

PIN

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In e

ach

conn

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n si

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roup

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valu

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to a

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type

s in

the

grou

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hen

used

with

the

sam

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t-si

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and

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AP

I IF,

AP

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26,

and

27 ⁄8

Slim

Hol

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nnec

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use

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ith 3

1 ⁄2x

11 ⁄4dr

ill c

olla

rs a

ll ha

ve th

e sa

me

min

imum

mak

e-up

torq

ue o

f 460

0 ft.

lb.,

and

the

BO

X is

the

wea

ker

mem

ber.

3.S

tres

s-re

lief f

eatu

res

are

disr

egar

ded

for

mak

e-up

torq

ue.

1 Bas

is o

f cal

cula

tions

for

reco

mm

ende

d m

ake-

up to

rque

ass

umed

the

use

of a

thre

ad c

ompo

und

cont

aini

ng 4

0-60

% b

y w

eigh

t of f

inel

y po

w-

dere

d m

etal

ic z

inc

or 6

0% b

y w

eigh

t of f

inel

y po

wde

red

met

allic

lead

,w

ith n

ot m

ore

than

0.3

% to

tal a

ctiv

e su

lfur

(Ref

eren

ce th

e ca

utio

nre

gard

ing

the

use

of h

azar

dous

mat

eria

ls in

App

endi

x F

of S

peci

ficat

ion

7) a

pplie

d th

orou

ghly

to a

ll th

read

s an

d sh

ould

ers

and

usin

g th

e m

odi-

fied

Scr

ew J

ack

form

ula

in A

ppen

dix

A, p

arag

raph

A.8

, and

a u

nit

stre

ss o

f 62,

500

psi i

n th

e bo

x or

pin

, whi

chev

er is

wea

ker.

2 Nor

mal

torq

ue r

ange

is ta

bula

ted

valu

e pl

us 1

0%.H

ighe

r to

rque

val

ues

may

be

used

und

er e

xtre

me

cond

ition

s.3 M

ake-

up to

rque

for

27 ⁄8PA

C c

onne

ctio

n is

bas

ed o

n 87

,500

psi s

tres

san

d ot

her

fact

ors

liste

d in

foot

note

1.

4 Mak

e-up

torq

ue fo

r H

-90

conn

ectio

n is

bas

ed o

n 56

,200

psi

str

ess

and

othe

r fa

ctor

s lis

ted

in fo

otno

te 1

.

Co

nn

ecti

on

Min

imu

m M

ake-

up

To

rqu

e2ft

-lb

Size

,O

D,

Bo

re o

f D

rill

Co

llar,

inch

esin

.Ty

pe

(in

.)21 /2

213/16

3

31 /4

31 /233 /2

4

85 /8A

Pl R

egu

lar

103 /4

*112

,883

*112

,883

*112

,883

*112

,883

(wit

h lo

w t

orq

ue

face

)11

*130

,672

*130

,672

*130

,672

*130

,672

111 /4

147,

616

142,

430

136,

846

130,

871

85 /8H

-90

103 /4

*92,

960

*92,

960

*92,

960

*92,

960

(wit

h lo

w t

orq

ue

face

)11

*110

,781

*110

,781

*110

,781

*110

,781

111 /4

*129

,203

*129

,203

*129

,203

*129

,203


Appendix #8Torque Specifications for Computalog Ltd.Mud Pulse MWD Tubulars

172


Connection Between 127 mm 159 mm

5 in. 6.25 in

Drill Collar

Top Cross-Over 3.5" IF 4.5”H-90

N-m 11382 37073

ft-lbs 8400 27360

Top Cross-Over

Pulser Sub 4"FH 4.5" XH

N-m 14634 22358

ft-lbs 10800 16500

Pulser Sub

MWD Collar 3.5" IF 4.5" XH

N-m 11382 22358

ft-lbs 8400 16500

MWD Collar

Bottom Cross-Over/Choke Sub 3.5" IF 4.5" XH

N-m 11382 22358

ft-lbs 8400 16500

Bottom Cross Over/Choke Sub

Drilling Motor 3.5" IF 4.5”H-90

N-m 11382 37073

ft-lbs 8400 27360

Tubular Size


173

165 mm 171 mm 203 mm 229 mm

6.5 in. 6.75 in. 8 in. 9 in.

- 5" H-90 - -

- 37398 - -

- 27600 - -

4.5" XH 4.5" IF 6 5/8" Reg. 7 5/8" Reg.

22629 34146 50910 87194

16700 25200 37550 64350

4.5" XH 4.5" IF 6 5/8" Reg. 7 5/8" Reg.

22629 34146 50910 87194

16700 25200 37550 64350

4.5" XH 4.5" IF 6 5/8" Reg. 7 5/8" Reg.

22629 34146 50910 87194

16700 25200 37550 64350

- 5" H-90 - -

- 37398 - -

- 27600 - -

Tubular Size


174

Appendix #9Torque Specifications for Computalog Ltd.Electromagnetic MWD Tubulars


Tubu

lar

Siz

e

Mak

e-up

77.8

mm

85.7

mm

88.9

mm

120.

6 m

m15

8.7

mm

171.

1 m

m20

3.2m

m24

1.3m

Torq

ue3

1/6

in.

3 3/

8 in

.3

1/2

in.

4 3/

4 in

.6

1/4

in.

6 3/

4 in

.8

in.

9 1/

2 in

.

m-d

aN48

075

075

012

0031

0038

4060

0099

00

ft-lb

s35

4055

0055

0088

0022

900

2820

044

000

7300

0


175


176

Computalog Commander™ Motor HandbookDr

ill C

olla

r Wei

ght (

Stee

l) (k

ilogr

ams

per m

etre

) Ta

ken

from

API

Rec

omm

ende

d Pr

actic

e 7G

Appendix # 10(Metric)

Dril

lC

olla

rO

DD

rill C

olla

r ID

, mm

mm

25.4

31.8

38.1

44.5

50.8

57.2

63.5

71.4

76.2

82.6

88.9

95.3

101.

673

.028

.326

.823

.876

.231

.229

.826

.879

.432

.732

.729

.882

.638

.735

.732

.788

.944

.643

.240

.295

.352

.149

.147

.6


177


(Metric)

Dril

lC

olla

rO

DD

rill C

olla

r ID

, mm

mm

25.4

31.8

38.1

44.5

50.8

57.2

63.5

71.4

76.2

82.6

88.9

95.3

101.

610

1.6

59.5

58.0

55.1

52.1

47.6

43.2

104.

864

.061

.058

.055

.152

.147

.610

8.0

68.4

65.5

62.5

59.5

56.5

52.1

114.

375

.974

.471

.468

.464

.061

.012

0.7

80.4

77.4

74.4

69.9

65.5

127.

090

.887

.883

.378

.974

.413

3.4

101.

296

.793

.789

.384

.813

9.7

111.

610

8.6

104.

299

.795

.289

.3

146.

112

2.0

119.

011

6.1

111.

610

7.1

99.7

95.2

89.3


178



(Metric)

Dril

lC

olla

rO

DD

rill C

olla

r ID

, mm

mm

25.4

31.8

38.1

44.5

50.8

57.2

63.5

71.4

76.2

82.6

88.9

95.3

101.

615

2.4

133.

913

0.9

126.

512

3.5

117.

611

1.6

107.

110

1.2

158.

814

5.8

142.

813

9.9

135.

413

0.9

123.

511

9.0

113.

110

7.1

165.

115

9.2

156.

215

1.8

147.

314

2.8

135.

413

2.4

126.

511

9.0

171.

517

2.6

169.

616

5.2

160.

715

6.2

148.

814

5.8

138.

413

2.4

177.

818

6.0

183.

017

8.6

174.

116

9.6

163.

715

9.2

153.

314

5.8

138.

412

5.0

184.

219

9.4

196.

419

3.4

189.

018

4.5

177.

117

2.6

166.

716

0.7

153.

313

8.4

190.

521

4.3

211.

320

6.8

203.

919

7.9

192.

018

7.5

181.

517

4.1

168.

115

1.8

196.

922

9.2

226.

222

3.2

218.

721

4.3

206.

820

2.4

196.

419

0.5

183.

016

6.7


179


(Metric)

No

tes:

1. R

efer

to

API

Sp

ecif

icat

ion

7, T

able

6.1

fo

r A

PI s

tan

dar

d d

rill

colla

r d

imen

sio

ns.

No

tes:

2. F

or

spec

ial c

on

fig

ura

tio

ns

of

dri

ll co

llars

, co

nsu

lt m

anu

fact

ure

r fo

r re

du

ctio

n in

wei

gh

t.

Dril

lC

olla

rO

DD

rill C

olla

r ID

, mm

mm

25.4

31.8

38.1

44.5

50.8

57.2

63.5

71.4

76.2

82.6

88.9

95.3

101.

620

3.2

245.

524

2.5

238.

123

3.6

229.

222

3.2

218.

721

2.8

205.

319

7.9

181.

520

9.6

261.

925

8.9

254.

425

0.0

245.

523

8.1

235.

122

9.2

221.

721

4.3

197.

921

5.9

278.

327

5.3

270.

826

6.4

261.

925

5.9

251.

524

5.5

238.

123

0.6

223.

222

8.6

312.

530

9.5

306.

530

2.1

297.

629

0.2

285.

727

9.7

273.

826

6.4

258.

924

1.3

348.

234

5.2

342.

233

7.8

333.

332

7.4

321.

431

5.5

311.

030

6.5

294.

624

7.7

369.

036

4.6

361.

635

7.1

352.

734

5.2

340.

833

4.8

328.

832

1.4

314.

025

4.0

388.

438

5.4

382.

437

8.0

373.

536

6.0

361.

635

5.6

349.

734

2.2

334.

827

9.4

471.

746

8.7

465.

746

1.3

456.

844

9.4

444.

943

9.0

433.

042

5.6

418.

130

4.8

564.

056

1.0

556.

555

2.0

547.

654

1.6

537.

253

1.2

523.

851

6.3

508.

9


180

Computalog Commander™ Motor HandbookDr

ill C

olla

r Wei

ght (

Stee

l) (p

ound

s pe

r foo

t) Ta

ken

from

API

Rec

omm

ende

d Pr

actic

e 7G


(Imperial)D

rill

Col

lar

OD

Dril

l Col

lar I

D, m

min

ches

111 /4

11 /213 /4

221 /4

21 /2213

/163

31 /431 /2

33 /44

27 /819

1816

321

2018

31 /822

2220

31 /426

2422

31 /230

2927

33 /435

3332


181


(Imperial)

Dril

lC

olla

rO

DD

rill C

olla

r ID

, mm

inch

es1

11 /411 /2

13 /42

21 /421 /2

213/16

331 /4

31 /233 /4

44

4039

3735

3229

41 /843

4139

3735

3241 /4

4644

4240

3835

41 /251

5048

4643

4143 /4

5452

5047

445

6159

5653

5051 /4

6865

6360

5751 /2

7573

7067

6460

53 /482

8078

7572

6764

60


182



(Imperial)

Dril

lC

olla

rO

DD

rill C

olla

r ID

, mm

inch

es1

11 /411 /2

13 /42

21 /421 /2

213/16

331 /4

31 /233 /4

46

9088

8583

7975

7268

61 /498

9694

9188

8380

7672

61 /210

710

510

299

9691

8985

8063 /4

116

114

111

108

105

100

9893

897

125

123

120

117

114

110

107

103

9893

8471 /4

134

132

130

127

124

119

116

112

108

103

9371 /2

144

142

139

137

133

129

126

122

117

113

102

73 /415

415

215

014

714

413

913

613

212

812

311

2


183


(Imperial)

Dril

lC

olla

rO

DD

rill C

olla

r ID

, mm

inch

es1

11 /411 /2

13 /42

21 /421 /2

213/16

331 /4

31 /233 /4

48

165

163

160

157

154

150

147

143

138

133

122

81 /417

617

417

116

816

516

015

815

414

914

413

381 /2

187

185

182

179

176

172

169

165

160

155

150

921

020

820

620

320

019

519

218

818

417

917

491 /2

234

232

230

227

224

220

216

212

209

206

198

93 /424

824

524

324

023

723

222

922

522

121

621

110

261

259

257

254

251

246

243

239

235

230

225

1131

731

531

331

030

730

229

929

529

128

628

112

379

377

374

371

368

364

361

357

352

347

342

No

tes:

1. R

efer

to

API

Sp

ecif

icat

ion

7, T

able

6.1

fo

r A

PI s

tan

dar

d d

rill

colla

r d

imen

sio

ns.

No

tes:

2. F

or

spec

ial c

on

fig

ura

tio

ns

of

dri

ll co

llars

, co

nsu

lt m

anu

fact

ure

r fo

r re

du

ctio

n in

wei

gh

t.


184


Appendix #11API Casing Data, with Bit Sizes andClearances (Metric)

CASING SPECIFICATIONS

Casing Size CasingOD Weight ID

(mm) (kg/m) (mm)

114.3 14.14 103.8917.26 101.6020.09 99.57

127.0 17.11 115.8219.34 114.1522.32 111.9626.78 108.61

139.7 19.34 128.1220.83 127.3023.06 125.7325.30 124.2629.76 121.3634.22 118.62

152.4 22.32 140.3126.78 137.7729.76 135.9434.22 133.10

168.3 25.30 155.8329.76 153.6435.71 150.3941.66 147.0947.62 144.15


185

CASING BIT SIZES AND SPECIFICATIONS DIAMETRICAL CLEARANCE

DriftDiameter Bit Size Clearance

(mm) (mm) (mm)

100.71 98.4 2.2998.43 98.4 0.0096.39 95.3 1.14112.65 108.0 4.70110.97 108.0 3.02108.79 108.0 0.84105.44 104.8 0.66124.94 120.7 4.29124.13 120.7 3.48122.56 120.7 1.19121.08 120.7 0.43118.19 117.5 0.71115.44 114.3 1.14137.13 136.5 0.61134.59 130.2 4.42132.77 130.2 2.59129.92 123.8 6.10152.65 152.4 0.25150.47 149.2 1.24147.22 142.9 4.34143.92 142.9 1.04140.97 136.5 4.44


186



API Casing Data, with Bit Sizes andClearances (Metric)



(mm) (kg/m) (mm)

177.8 25.30 166.0729.76 163.9834.22 161.7038.69 159.4143.15 157.0747.62 154.7952.08 152.5056.54 150.37

193.7 29.76 180.9835.71 178.4439.28 177.0144.19 174.6350.15 171.8358.03 168.28

219.1 35.71 205.6641.66 203.6347.62 201.1953.57 198.7659.52 196.2265.47 193.6872.91 190.78


187



(mm) (mm) (mm)

162.89 158.8 4.14160.81 158.8 2.06158.52 155.6 2.95156.24 155.6 0.66153.90 152.4 1.50151.61 149.2 2.39149.33 149.2 0.10147.19 146.1 1.14177.80 171.5 6.35175.26 171.5 3.81173.84 171.5 2.39171.45 171.5 0.00168.66 168.3 0.38165.10 165.1 0.00202.49 200.0 2.46200.46 200.0 0.43198.02 193.7 4.34195.58 193.7 1.91193.04 187.3 5.71190.50 187.3 3.18187.60 187.3 0.28


188






(mm) (kg/m) (mm)

244.5 43.60 230.2048.06 228.6353.57 226.5959.52 224.4164.73 222.3869.94 220.5079.61 216.79

273.1 48.73 258.8860.26 255.2767.70 252.7375.89 250.1982.58 247.90

298.5 56.54 283.2162.50 281.5369.94 279.4080.35 276.3589.28 273.61

339.7 71.42 322.9681.80 320.4290.77 317.88

101.18 315.34107.14 313.61


189



(mm) (mm) (mm)

226.24 222.3 3.99224.66 222.3 2.41222.63 222.3 0.38220.45 219.1 1.37218.41 215.9 2.51216.54 215.9 0.64212.83 212.7 0.10254.91 250.8 4.09251.31 250.8 0.48248.77 247.7 1.12246.23 244.5 1.75243.94 228.6 15.34279.25 273.1 6.20277.57 273.1 4.52275.44 273.1 2.39272.39 269.9 2.51269.65 250.8 18.82319.00 311.2 7.85316.46 311.2 5.31313.92 311.2 2.77311.38 311.2 0.23309.65 304.8 4.85


190






(mm) (kg/m) (mm)

406.4 81.84 390.5396.72 387.35

111.60 384.18124.99 381.25

508.0 139.87 485.75


191



(mm) (mm) (mm)

385.75 381.0 4.75382.57 381.0 1.57379.37 374.7 4.72376.48 374.7 1.83480.97 444.5 36.47


192



API Casing Data, with Bit Sizes andClearances (Imperial)


Casing Size CasingOD Weight ID(in.) (lbs/ft) (in.)

41/2 9.50 4.09011.60 4.00013.50 3.920

5 11.50 4.56013.00 4.49415.00 4.40818.00 4.276

51/2 13.00 5.04414.00 5.01215.50 4.95017.00 4.89220.00 4.77823.00 4.670

6 15.00 5.52418.00 5.42420.00 5.35223.00 5.240

65/8 17.00 6.13520.00 6.04924.00 5.92128.00 5.79132.00 5.675


193



(in.) (in.) (in.)

3.965 37/8 0.0903.875 37/8 0.0003.795 33/4 0.0454.435 41/4 0.1854.369 41/4 0.1194.283 41/4 0.0334.151 41/8 0.0264.919 43/4 0.1694.887 43/4 0.1374.825 43/4 0.0754.767 43/4 0.0174.653 45/8 0.0284.545 41/2 0.0455.399 53/8 0.0245.299 51/8 0.1745.227 51/8 0.1025.115 47/8 0.2406.010 6 0.0105.924 57/8 0.0495.796 55/8 0.1715.666 55/8 0.0415.550 53/8 0.175


194






7 17.00 6.53820.00 6.45623.00 6.36626.00 6.27629.00 6.18432.00 6.09435.00 6.00438.00 5.920

75/8 20.00 7.12524.00 7.02526.40 6.96929.70 6.87533.70 6.76539.00 6.625

85/8 24.00 8.09728.00 8.01732.00 7.92136.00 7.82540.00 7.72544.00 7.62549.00 7.511


195



(in.) (in.) (in.)

6.413 61/4 0.1636.331 61/4 0.0816.241 61/8 0.1166.151 61/8 0.0266.059 6 0.0595.969 57/8 0.0945.879 57/8 0.0045.795 53/4 0.0457.000 63/4 0.2506.900 63/4 0.1506.844 63/4 0.0946.750 63/4 0.0006.640 65/8 0.0156.500 61/2 0.0007.972 77/8 0.0977.892 77/8 0.0177.796 75/8 0.1717.700 75/8 0.0757.600 73/8 0.2257.500 73/8 0.1257.386 73/8 0.011


196






95/8 29.30 9.06332.30 9.00136.00 8.92140.00 8.83543.50 8.75547.00 8.68153.50 8.535

103/4 32.75 10.19240.50 10.05045.50 9.95051.00 9.85055.50 9.760

113/4 38.00 11.15042.00 11.08447.00 11.00054.00 10.88060.00 10.772

133/8 48.00 12.71554.50 12.61561.00 12.51568.00 12.41572.00 12.347


197



(in.) (in.) (in.)

8.907 83/4 0.1578.845 83/4 0.0958.765 83/4 0.0158.679 85/8 0.0548.599 81/2 0.0998.525 81/2 0.0258.379 83/8 0.00410.036 97/8 0.1619.894 97/8 0.0199.794 93/4 0.0449.694 95/8 0.0699.604 9 0.60410.994 103/4 0.24410.928 103/4 0.17810.844 103/4 0.09410.724 105/8 0.09910.616 97/8 0.74112.559 121/4 0.30912.459 121/4 0.20912.359 121/4 0.10912.259 121/4 0.00912.191 12 0.191


198






16 55.00 15.37565.00 15.25075.00 15.12584.00 15.010

20 94.00 19.124


199



(in.) (in.) (in.)

15.187 15 0.18715.062 15 0.06214.936 143/4 0.18614.822 143/4 0.07218.936 171/2 1.436


200

Computalog Commander™ Motor HandbookTF

A of

Flo

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202


Appendix #13IADC Roller Bit Dull Grading System

TOOTH CONDITION

I = Inner 2/3 of bit cutting structure

O = Outer 1/3 of bit cutting structure

Grade from 1 to 8 based on lost tooth height and/orinsert wear, loss or breakage

1 = No loss, etc.

8 = All lost or broken, etc.

DULL CHARACTERISTICS

D = Major Dull Char. O = Other Dull Char.

BC Broken cone

BT Broken teeth/cutters

BU Balled up

*CC Cracked cone

*CD Cone dragged

CI Cone interference

CR Cored

CT Chippedteeth/cutters

ER Erosion

FC Flat crested wear

HC Head checking

JC Junk damage

*LC Lost cone

LN Lost Nozzle

LT Lost teeth/cutter

OC Off-center wear

PB Pinched bit

PN Plugged nozzle

RG Rounded gage

RO Ring out

SD Shirt tail damage

SS Self-sharpening wear

TR Tracking

WO Wash out on bit

WT Worn teeth/cutters

NO No major/other dullcharacteristics

* SHOW CONE NUMBER(S) UNDER LOCATION


203


IADC Roller Bit Dull Grading System

L = LOCATION CONES

Roller cone

N Nose rows H Heel rows

M Middle rows A All rows

B = BEARING DULL CODE

Unsealed Bearings Sealed Bearings

1 No life used E Seals effective

8 All life used F Seals failed

G = GAGE WEAR

I In gage

Undergage - Measure and record to nearestmillimetre (mm) amount undergage.

R = REASON PULLED

BHA CHG Bottomholeassembly

DMF Downhole MTRfailure

DSF Drill string failure

DST Drill stem test

DTF Downhold toolfailure

CM Condition mud

CP Core point

DP Drill plug

FM Formation change

HP Hole problems

HR Hours

PP Pump pressure

PR Penetration rate

TD Total depth/CSGdepth

TO Torque

TW Twist off

WC Weather conditions

WOS Washout-drill string

LOG Run logs

RIG Rig repair


204


Appendix #14Conversion Factors

MULTIPLY BY TO OBTAIN

LENGTHcentimetre (cm) 0.3937 inch (in)

foot (ft) 0.3048 metre (m)

inch (in) 2.54 centimetre (cm)

inch (in) 25.4 millimetre (mm)

kilometre (km) 0.6214 mile

metre (m) 3.28084 foot (ft)

mile 1.609 kilometre (km)

millimetre (mm) 0.03937 inch (in)

AREAacre 4046.9 metre2 (m2)

centimetre2 (cm2) 0.1550 inch2 (in2)

foot2 (ft2) 0.09290 metre2 (m2)

inch2 (in2) 645.2 millimetre2 (mm2)

inch2 (in2) 6.452 centimetre2 (cm2)

metre2 (m2) 10.764 foot2 (ft2)

metre2 (m2) 0.0002471 acre

millimetre2 (mm2) 0.001550 inch2 (in2)

VOLUMEbarrels 0.1589 metre3 (m3)

centimetre3 (cm3) 0.06102 inch3 (in3)

foot3 (ft3) 0.02832 metre3 (m3)

foot3 (ft3) 28.32 litre (l)

gallon 3.7854 litre (l)

inch3 (in3) 16,387 millimetre3 (mm3)

inch3 (in3) 16.387 centimetre3 (cm3)

litre (l) 0.2642 gallon

litre (l) 0.035315 foot3 (ft3)

metre3 (m3) 6.293 barrels

metre3 (m3) 35.315 foot3 (ft3)

millimetre3 (mm3) 0.00006102 inch3 (in3)


205


Conversion Factors


VELOCITYfoot/second (ft/sec) 0.3048 metre/second (m/sec)

kilometre/hour (km/hr) 0.6214 mile/hour (mph)

mile/hour (mph) 1.609 kilometre/hour (km/hr)

metre/second (m/sec) 3.281 foot/second (ft/sec)

FLOWgallon/min (gpm) 3.7854 litre/min (l/min)

gallon/min (gpm) 0.003785 metre3/min (m3/min)

litre/min (l/min) 0.2642 gallon/min (gpm)

metre3/min (m3/min) 264.2 gallon/min (gpm)

MASSkilogram (kg) 2.2046 pound (lb)

pound (lb) 0.4536 kilogram (kg)

DENSITYkilogram/metre3 (kg/m3) 0.351 pound/barrel

kilogram/metre3 (kg/m3) 0.06243 pound/foot3 (lb/ft3)

kilogram/metre3 (kg/m3) 0.008345 pound/gallon (lb/gallon)

pound/barrel 2.85 kilogram/metre3 (kg/m3)

pound/foot3 (lb/ft3) 16.02 kilogram/metre3 (kg/m3)

pound/gallon (lb/gallon) 119.83 kilogram/metre3 (kg/m3)

FORCEdecanewton (daN) 2.248 pound-force (lbf)

kilogram-force (kgf) 9.807 newton (N)

newton (N) 0.1020 kilogram-force (kgf)

pound-force (lbf) 0.4448 decanewton (daN)


206



Conversion Factors


FORCE/LENGTHnewton/metre (N/m) 0.06852 pound/foot (lbf/foot)

pound/foot (lbf/foot) 14.594 newton/metre (N/m)

TORQUEfoot-pound (ft-lbs) 1.3558 newton-metre (N-m)

newton-metre (N-m) 0.7376 foot-pound (ft-lbs)

PRESSUREbar 14.504 pound/inch2 (psi)

kilopascals (kPa) 0.1450 pound/inch2 (psi)

pound/inch2 (psi) 0.06895 bar

pound/inch2 (psi) 6.895 kilopascals (kPa)

PRESSURE/LENGTHkilopascals/metre (kPa/m) 0.04421 pound/inch2/foot (psi/ft)

pound/inch2/foot (psi/ft) 22.62 kilopascals/metre (kPa/m)

POWERhorsepower (hp) 0.7457 kilowatt (kW)

kilowatt (kW) 1.341 horsepower (hp)

TEMPERATURETo convert from Celsius (C) to Fahrenheit (F) use:

F = 1.8 * C + 32

To convert from Fahrenheit (F) to Celsius (C) use:

C = (F - 32) / 1.8

VISCOSITYcentipoise 0.001 pascal-second (Pa-sec)

centistoke 1x10-6 metre2/ second (m2/sec)


207

Notes:


208


Notes:


209

Notes:


210


Notes:


211

Notes:


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213


214


Computalog Ltd. Worldwide Locations

CORPORATE HEAD OFFICE

COMPUTALOG LTD.4500, 150-6th Avenue S.W.Calgary, AlbertaCanada T2P 3Y7Ph: (403) 265-6060Fax: (403) 298-3880e-mail: [email protected]: www.computalog.com

COMPUTALOG LTD.1700, 363 N. Sam Houston Parkway EastHouston, TexasU.S. 77060Ph: (281) 260-9033Fax: (281) 820-9341e-mail: [email protected]: www.computalog.com


215

WORLDWIDE DRILLING SERVICEOFFICES

COMPUTALOG LTD. CANADA9204 - 37 AvenueEdmonton, AlbertaCanada T6E 5L4Ph: (780) 462-6300Fax: (780) 465-4551

COMPUTALOG LTD. INDIA771, Hico House, Ground Floor, Moghul Lane,Off Sitladevi Temple RoadMahim (W), MumbaiIndia 400-016Ph: 91-22-437-5915

91-22-431-4614Fax: 91-22-437-9207

COMPUTALOG LTD. INDONESIAJL.TB.SimatupangNo. 51AJakarta SelatanJakarta 12520 IndonesiaPh: (62-21) 789-2077Fax: (62-21) 781-7719

COMPUTALOG LTD. VENEZUELAZona Industrial Via VeaEl Tigre, El TigritoDiagonal a La UrbanizacionVirgen del ValleEl Tigre – Edo. AnzoateguiVenezuelaPh: 58-83-415011

58-83-415096Fax: 58-83-415555

Calle AmparoNo. 129, Las MorochasCuidad Ojeda – Edo. ZuliaVenezuelaPh: 58-65-31-3243Fax: 58-65-21-665


216


WORLDWIDE DRILLING SERVICEOFFICES Continued

COMPUTALOG USA INC.1207 Spur 529Rosenburg, TexasU.S. 77471Ph: 281-633-2770Fax: 281-633-2777

P.O. Box 60280311 Wall StreetLafayette, LouisianaU.S. 70506Ph: 337-233-4433Fax: 337-233-5594

COMPUTALOG DRILLING SERVICESP.O. Box 2146Abu Dhabi, U.A.E.Ph: 00971-2-6449966Fax: 00971-2-6442765

COMPUTALOG DRILLING SERVICESEddesser Str. 1D-31234 EdemissenGermanyPh: 0049-5176-9896-0Fax: 0049-5176-9896-12


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