stage cementing tools OPERATING MANUAL TYPE 680 ......stage cementing tools OPERATING MANUAL TYPE 680 – Running Instructions 1. Run casing and install Top-Co 680 Stage Cementing

Technical Support Line: Phone: +1.780.440.4440 | Toll Free: +1.866.640.4440 | USA: +1.877.246.2612 | www.rubicon-oilfield.com Rev 03-2017 Dec

stage cementing tools

OPERATING MANUAL TYPE 680 – Running Instructions

Contents 1. GENERAL INFORMATION 1 2. INSPECTION 2 3. RUBBER SHUT-OFF BAFFLE PLATE INSTALLATION 3 4. INSTALLING AND RUNNING IN STAGE COLLAR 4 5. HYDRAULIC OPENING of STAGE COLLAR 5 6. CONTINGENCY MECHANICAL OPENING of STAGE COLLAR 6 7. USING WEIGHT on BIT (WOB) to CLOSE 7 8. SETTING HYDRAULIC OPENING PRESSURE 8 9. DRILL OUT PROCEDURE 12

Type 680 Hydraulic Stage Tool

Plug Set for Type 680 Stage Tool

Stage Tool Equipment

Top-Co 680 Two Stage Cementing Collars are supplied with: 1. First stage flexible shut-off plug. 2. Rubber first stage shut-off baffle plate. 3. Second stage closing plug.

Certain applications will require a landing collar instead of a rubber baffle plate for landing the first stage shutoff plug.

First Stage Flexible Shut-Off Plug and Baffle Plate

Plugs to be run in order shown from left to right.

Second Stage Closing Plug

GENERAL INFORMATION 1.

Note: Stage tool drill-out materials are all PDC drillable: • aluminum • rubber • phenolic




Sequence of Operation:

Step 1: Stage collar in running-in and first stage cementing position. First stage shut-off plug will pass through stage cementing collar while displacing first stage cement, landing on baffle plate located in float collar.

Step 2: Hydraulic Opening - Opening sleeve shifted down after opening through application of pressure, allowing second stage cement to be displaced through ports.

Step 3: Second stage closing displacement plug landed in stage cementing collar. Application of pressure will close the stage collar ports. Two stage cement job is complete.

• Inspect stage collar and auxiliary equipment upon arrival at location. • Check stage collar for dents, damaged threads, etc. • If present, remove all plastic port plugs from the tool OD. • Check inside of stage collar for any foreign debris; dirt, cutti ngs, etc. • Check closing plug to verify that it will seat properly in stage tool. • Ascertain that the first stage flexible plug will seat properly on the baffle plate. • Verify that the cementing head contains no foreign plugs or objects. • If first stage flexible shut-off plug and second stage closing plug are to be pre-load in cementing head, verify

that the plug release mechanism is operable, that the retaining mechanism is sufficient to retain the first-stage flexible shut-off plug and the second-stage closing plug.

• Verify that the nose of the second stage closing plug will pass through the ID of the cement head or any joints or tools between the cement head and the casing.

• If for some reason it is felt that the cementing head cannot properly retain the first-stage flexible shut-off plug, it will have to be loaded by hand.

INSPECTION 2.




RUBBER SHUT-OFF BAFFLE PLATE INSTALLATION

Before running casing, install rubber shut-off baffle plate on top of float collar with tapered sid up.

a. For API Buttress and 8RD connections, the rubber baffle is press fit into the box end of the float equipment. The pin of the casing will hold the baffle plate in place once the float equipment is installed on the casing.

Note: Thread lok can be used to hold the baffle in place.

b. For premium connections, the first-stage shut-off baffle plate should be installed by mixing up thread lok compound and placing thread lok on the top exposed surface of the float collar. (It is recommended that a cloth be placed in the circulation port of the float collar during this operation to prevent thread lok from dropping down into the valve). Apply the thread lock onto the cement at the bottom of the box threads. Press the baffle plate firmly onto the thread lock while centering it in the bore. Allow the thread lok to cure until the baffle plate is held in place (usually about 60 minutes).

Rubber Baffle Plate

IMPORTANT:

The rubber shut-off baffle plate should not be used on float equipment with tapered surfaces, such as ball-activated differential or auto-fill float equipment. It is recommended that both a Float Shoe and a Float Collar be run for two-stage cementing. This gives maximum assurance that the cement is retained in the desired location upon completion of displacement of first stage cement.

3.




1. Run casing and install Top-Co 680 Stage Cementing Collar at desired depth. Thread lok must be applied to the

stage collar pin. Do not use casing tongs or any other type of tong, on any part of the stage collar body during installation.

Body NO Tongs Permitted

The reduced diameters at the box and pin end of the stage tool can be tonged for make-up purposes. 2. Run casing and install Top-Co 680 Stage Cementing Collar at desired depth. Thread lok must be applied to the

Stage Collar pin.

4.2 METHOD A

a. Screw the stage collar onto the casing string and torque as per thread requirements. IMPORTANT: Tongs can ONLY be placed on the reduced diameters on the box and pen end of the stage tool during make-up to the casing (Reference EB- 38).

b. Insert the pin from the next casing joint into the box of the stage collar and torque as per the thread requirement.

c. If thread lok is being used ALWAYS apply to the pin not the box.

4.2 METHOD B

a. Partially thread the stage collar pin onto the casing string. b. Position pin of next casing joint in box end of stage collar. c. Apply torque to casing above stage collar to tighten joints. d. Torque casing as per thread requirements.

IMPORTANT: Tongs can ONLY be placed on the reduced diameters on the box and pen end of the stage tool during make-up to the casing (Reference EB- 38). e. If thread lok is being used ALWAYS apply to the pin not the box.

3. Run casing to total depth. 4. Circulate to condition the hole and the drilling fluid. 5. Mix and pump First Stage Cement into casing. 6. Launch from cementing head first-stage flexible shut-off plug on top of first-stage cement. If first-stage flexible

shut-off plug is loaded in cementing head, do assure that the plug release mechanism is sufficient to retain the first-stage flexible shut-off plug. If it is felt that the cementing head’s plug release mechanism is insufficient, the plug should be loaded by hand to avoid premature releasing of the first stage flexible shut-off plug.

INSTALLING AND RUNNING IN STAGE COLLAR 4.




7. Start pumping calculated amount of fluid to move first stage flexible shut-off plug to the float collar. It is highly

recommended that the pumping rate be slowed to 0.5 cu.meter/minute (3 bpm), as the flexible plug is pumped through the stage collar (Do not exceed 0.8 cu.meter/minute or 5 bpm when pumping through stage collar). After the plug passes through the stage collar, resume the regular pump rate and pump the total calculated amount of displacement fluid necessary to land the first stage flexible shut-off plug at the rubber shut-off baffle.

8. Pressure 3.447 MPA (500 psi) over circulating pressure to seat the plug in baffle plate. 9. Release the pump pressure against the first-stage flexible shut-off plug and check the float shoe / float collar

for flow back. Record the amount of fluid bled back to the pumping unit. This information may be helpful later in determining if the opening dart is in place.

1. With the float shoe / float collar holding back pressure, pressure float collar.

If an external casing packer is being used, increase pressure to inflate and set the external casing packer. 2. Apply pressure to casing until Stage Tool hydraulically opens. Opening pressure to be set before running as per

Section 7.0 and Table 1 (Opening Pressure Hydraulic). 3. When stage collar opens, circulation can be established to condition the hole. After conditioning of the hole,

circulation should be maintained at a lesser rate until second-stage cement is ready to be pumped. This will prevent solids in the drilling fluid from settling in the stage tool and preventing proper shifting of closing sleeve.

4. Mix second stage and pump into casing. 5. After second stage cement slurry is pumped, release second stage closing plug from plug loading head. (Or

release manually if plug loading head is not used). Verify that the plug has left the head. Cement lines may or may not be washed out before dropping the plug.

6. Maximum rate of pumping cement through the stage tool should be 5 – 8 bbl. /min. Pump the calculated amount of fluid to seat second closing plug in the stage collar. As the closing plug approaches the stage collar, for the last 5 barrels slow the pump rate to a flowrate between 2 bpm and a flow rate (in bpm) equal to half of the casing diameter in inches, up to a maximum of 8 bpm. (Example: 7" tool = 2.0 - 3.5 bpm)Monitor pressure and check for bumping of the plug.

7. When closing plug seats in stage collar, pressure as indicated in Table 1 (Closing Pressure) above circulating pressure to close stage collar.

8. Hold pressure for 5-10 minutes to assure stage collar has shifted to closed position. 9. Bleed off pressure; check for flow back to make sure the stage collar is locked in the closed position. If excessive and

continued flow back is observed, gradually increase pressure by 500 psi above the maximum closing pressure on Table 1. Increase pressure again by another 500 psi and hold for 10 minutes. Pressure should be increased for a third time by another 500 psi and held for 10 minutes then bleed off.

JOB IS NOW COMPLETE.

Note: These are the primary instructions recommended for use when operating the Type 680 Stage Collar. In the event that unforeseen circumstances arise; due to wellbore conditions or other factors; it may be necessary to deviate from these instructions.

HYDRAULIC OPENING of STAGE COLLAR 5.




CONTINGENCY MECHANICAL OPENING of STAGE COLLAR

1. With the Float Shoe / Float Collar holding back pressure, open cementing head and drop the aluminum second stage opening dart. Important: Allow time for opening dart to free fall to the stage collar. If well bore inclination is greater than 25º, the tool cannot be operated mechanically (dart does not free fall). Normal free fall rate would approximately be 300m per 5 minutes or 200 feet per minute. Mud weight and hole deviation may alter free fall time.

2. When opening dart is seated in the Stage Collar, pressure up as indicated in Table 1. (Opening Pressure Me- chanical) to open the stage collar.

3. When stage collar opens, circulation can be established to condition the hole. After conditioning of the hole, circulation should be maintained at a lesser rate until second-stage cement is ready to be pumped. This will prevent solids in the drilling fluid from settling in the stage tool and preventing proper shifting of closing sleeve.

4. Mix second stage and pump into casing. 5. After second stage cement slurry is pumped, release second stage closing plug from plug loading head. (Or

release manually if plug loading head is not used). Verify that the plug has left the head. Cement lines may or may not be washed out before dropping the plug.

6. Maximum rate of pumping cement through the stage tool should be 5 – 8 bbl. /min. Pump the calculated amount of fluid to seat second-closing plug in the stage collar. As the closing plug approaches the stage collar, for the last 5 barrels slow the pump rate to 2 barrels (0.32 cu. Meter) per minute for casing size 10 ¾”/173mm and higher, and to 1 barrel (0.16 cu. Meter) per minute for casing size 9 5/8” and smaller. Monitor pressure and check for bumping of the plug.

7. When closing plug seats in stage collar, pressure as indicated in Table 1 (Closing Pressure) above circulating pressure to close stage collar.

8. Hold pressure for 5-10 minutes to assure stage collar has shifted to closed position. 9. Bleed off pressure; check for flow back to make sure the stage collar is locked in the closed position. If excessive and

continued flow back is observed, gradually increase pressure by 500 psi above the maximum closing pressure on Table 1. Increase pressure again by another 500 psi and hold for 10 minutes. Pressure should be increased for a third time by another 500 psi and held for 10 minutes then bleed off.

JOB IS NOW COMPLETE.


6.




1. Tag the closing plug with BHA. 2. Mark the drill string when the closing plug has been tagged. 3. Apply the minimum weight to close the tool. Increase the weight until movement of the mark is seen or up to

the maximum closing weight. Refer to Table 1 for closing loads. Approximately 3-1/8” movement indicates the tool is closed.

4. If the tool has not shifted when the maximum weight is applied and held for 1 minute, increase the load by 15%. 5. Again, approximately 3-1/8” confirms the inner sleeves have shifted to the close position.

JOB IS NOW COMPLETE


USING WEIGHT on BIT (WOB) to CLOSE 7.




1. The opening pressure of the stage tool is controlled by the number of shear screws (Figure 1) used on the body (see Table 1). The standard factory setti ng is for maximum opening pressure as listed in Table 1.

2. All shear screws removed need to be replaced with aluminum Blank Screws to prevent debris from entering the stage tool body; see Figure 2.

IMPORTANT: The shear screws are not to be confused with the guide screws which can be identified by 2 holes drilled into the head. Do not remove or replace the guide screws.

3. The opening pressure shear screws are the bottom set of

screws (from the pin end); see Figure 3. DO NOT REMOVE OR ADJUST THE CLOSING SHEAR SCREWS (THREAD-LOK).

4. Determine the required hydraulic opening pressure and remove shear screws until required opening pressure is obtained. When removing screws, use an alternating pattern (i.e. 1st, 3rd, 5th around the tool) DO NOT REMOVE MORE THAN 6 OF THE 8 SHEAR SCREWS.

5. The shear screws have a right hand thread. Using a slotted screw driver, they are removed by turning them counter clockwise (Figure 4).

6. Care must be taken to ensure that, while the screws are being removed, no foreign objects land in shear screw holes.

7. Install the blank screws using a slotted screw driver, rotating them clockwise (Figure 5)

8. The blank screws should be tightened until the screw bottoms out.

9. If shear screws are being installed they should be peened to the stage tool body to lock them into place. The shear screws are peened with a hammer and punch. The punch should be placed at the joint between the Stage Collar body and the shear screw, and given a sharp hit with the hammer, the hit being hard enough to indent both body and shear screw. Only the shear screws need to be peened, not the blanks (Figure 6).

10. This is an optional procedure to peen the shear pins for the T680. It is only used if concerns about the screws backing off.

Note: Unless otherwise specifi ed, all Type 680 Stage Collars are shipped with a full set of shear screws in place.

CLOSING Shear Screws

OPENING Shear Screws

Figure 3: Opening & closing shear screw positions.

SETTING HYDRAULIC OPENING PRESSURE

Figure 1: Brass Shear Screw

Figure 2: Blank Screw

Guide Screw

8.




Figure 4: Removing shear screws. Figure 5: Installing blank screws.

Figure 6: Peening the screws (optional).

stage cementing tools TYPE 680 - Hydraulic Stage Collar

Rev 03-2017 Dec


Operating Specifications - Imperial:

DO NOT REMOVE MORE THAN 6 OF THE 8 SHEAR SCREWS! L-80 P-110 STAGE TOOL BODY

SIZE

(in)

CAS

ING

WEI

GH

T (lb

s./ft

)

OPENNING PRESSURE - HYDRAULIC (psi)

OPEN

ING

PRES

SURE

- Me

chan

ical

(psi)

CLOS

ING

PRES

SURE

(p

si)

CLOS

ING

FORC

E (lb

s)

MAX

IMU

M B

UR

ST P

RES

SUR

E (p

si)

MAX

IMU

M C

OLL

APSE

PR

ESSU

RE

(psi

)

MAX

IMU

M B

UR

ST P

RES

SUR

E (p

si)

MAX

IMU

M C

OLL

APSE

PR

ESSU

RE

(psi

)

LOAD

BEL

OW

TH

E TO

OL

(lbs.

)

MAX

TEM

P R

ATIN

G (°

F)

CEM

ENTI

NG

PO

RTS

OD

(in)

MAX

DR

ILLO

UT

ID

(in)

OPE

NIN

G S

EAT

ID (i

n)

CLO

SIN

G S

EAT

ID (i

n) Screws

8

7

6

5

4

3

2

4” N/A 3,600 3,150 2,700 2,250 1,800 1,350 900 700 - 1,000 1,300 - 1,600 12,112 - 16,112 9,800 9,903 13,475 12,630 120,000 400 8 x Dia. 0.875” 5.250 2.780 2.000 2.500

4-1/2” 9.5 - 11.6

3,600 3,150 2,700 2,250 1,800 1,350 900 700 - 1,000 1,200 - 1,500 15,240 - 17,160 8,948 8,408 12,303 15,500 135,000 400 8 x Dia. 0.875” 5.750 3.975

2.625 3.000 13.5 - 15.1 3.805

5” 11.5 - 13

3,600 3,150 2,700 2,250 1,800 1,350 900 700 - 1,000 1,000 - 1,300 17,240 - 19,160 8,252 7,152 11,319 8,711 150,000 400 8 x Dia. 0.875” 6.250 4.445

2.875 3.250 15 - 18 4.293

5-1/2” 14 - 15.5

3,600 3,150 2,700 2,250 1,800 1,350 900 500 - 800 700 - 1,000 16,240 - 17,160 7,813 6,417 11,033 8,192 160,000 400 8 x Dia. 0.875” 6.625 4.897

3.625 4.000 17 - 20 4.835

5-3/4” 19.5 - 23 3,600 3,150 2,700 2,250 1,800 1,350 900 600 - 900 900 - 1,200 19,840 - 21,760 7,350 5,604 10,106 6,507 167,000 400 8 x Dia. 0.875” 7.000 5.090 3.625 4.000

6-5/8” 20 - 24

3,600 3,150 2,700 2,250 1,800 1,350 900 600 - 900 900 - 1,200 27,400 - 29,400 6,421 3,992 8,842 4,587 190,000 400 8 x Dia. 0.875” 8.000 5.934

4.375 5.000 28 - 32 5.675

7” 20 - 26

3,600 3,150 2,700 2,250 1,800 1,350 900 500 - 800 800 - 1,100 27,400 - 29,400 6.236 3,650 8,575 4,271 200,000 400 8 x Dia. 0.875” 8.250 6.351

4.625 5.250 29 - 32 6.161

7-5/8” 26.4 - 29.7

3,600 3,150 2,700 2,250 1,800 1,350 900 500 - 800 800 - 1,100 30,608 - 32,368 5,717 3,053 7,860 3,427 225,000 400 10 x Dia. 0.875” 9.000 6.854

4.625 5.250 33.7 - 39 6.760

8-5/8” 28 - 32 3,600 3,150 2,700 2,250 1,800 1,350 900 400 - 700 600 - 900 33,368 - 35,368 5,977 3,351 8,218 3,850 275,000 400 10 x Dia. 0.875” 10.125 7.902 6.000 6.760

9-5/8” 32.3 - 36

3,600 3,150 2,700 2,250 1,800 1,350 900 400 - 700 500 - 800 38,600 - 40,600 5,440 2,738 7,480 2,978 300,000 400 10 x Dia. 0.875” 11.125 8.855

6.750 7.760 40 - 53.5 8.689

10-3/4” 40.5 - 45.5

2,800 2,450 2,100 1,750 1,400 1,050 700 200 - 500 300 - 600 33,368 - 35,368 5,629 2,953 7,739 3,284 375,000 400 10 x Dia. 0.875” 12.250 9.904

8.000 8.760 51 - 60.7 9.704

11-3/4” 47 - 54

2,600 2,275 1,950 1,625 1,300 975 650 200 - 500 300 - 600 33,368 - 35,368 6,925 4,877 9,536 5,472 520,000 400 12 x Dia. 0.875” 13.630 10.880

9.000 9.750 60 - 64 10.682

12-3/4” N/A 2,600 2,275 1,950 1,625 1,300 975 650 200 - 500 300 - 600 38,600 - 40,600 5,814 3,164 7,993 3,584 440,000 400 12 x Dia. 0.875” 14.750 11.886 10.000 10.750 13-3/8” 61 - 72 2,500 2,188 1,875 1,563 1,250 938 625 200 - 500 300 - 600 38,600 - 40,600 5,717 3,053 7,860 3,427 600,000 400 12 x Dia. 0.875” 15.000 12.375 10.500 11.250

NOTE: Casing weight ranges apply to API 8RD and Buttress connections only

stage cementing tools TYPE 680 - Hydraulic Stage Collar

Rev 03-2017 Dec


Operating Specifications - Metric: DO NOT REMOVE MORE THAN 6 OF THE 8 SHEAR SCREWS! L-80 P-110 STAGE TOOL BODY

SIZE

(m

m)

CASI

NG

WEI

GHT

(k

g/m

)

OPENNING PRESSURE - Hydraulic (MPa)

OPE

NIN

G P

RES

SURE

- M

echa

nica

l (M

Pa)

CLO

SIN

G

PRES

SUR

E (M

Pa)

CLO

SIN

G

FORC

E (k

N)

MAX

IMUM

BUR

ST

PRES

SURE

(MPa

)

MAX

IMUM

CO

LLAP

SE

PRES

SURE

(MPa

)

MAX

IMUM

BUR

ST

PRES

SURE

(MPa

)

MAX

IMUM

CO

LLAP

SE

PRES

SURE

(MPa

)

LOAD

BEL

OW

THE

TO

OL

(KN)

M

AX

TEM

P R

ATIN

G

(◦C)

CEM

ENTI

NG

PO

RTS

OD

(mm

)

MA

X D

RILL

OUT

ID

(mm

)

OPE

NIN

G S

EAT

ID (m

m)

CLO

SIN

G S

EAT

ID

(mm

)

Screws 8

7

6

5

4

3

2

101.60 N/A 24.82 21.72 18.62 15.51 12.41 9.31 6.21 4.83 - 6.90 8.96 - 11.03 53.88 - 71.67 67.57 68.28 92.91 87.08 534 204 8 x Dia. 22mm 133.35 70.61 50.80 63.50

114.30 14.14 - 17.26

24.82 21.72 18.62 15.51 12.41 9.31 6.21 4.83 - 6.90 8.27 - 10.34 67.79 - 76.33 61.70 57.97 84.93 106.87 600 204 8 x Dia. 22mm 146.05 100.97

66.68 76.20 20.09 - 22.47 96.65

127.00 17.11 - 19.35

24.82 21.72 18.62 15.51 12.41 9.31 6.21 4.83 - 6.90 6.90 - 8.96 76.69 - 85.23 56.76 49.31 78.04 60.06 667 204 8 x Dia. 22mm 158.75 112.90

73.03 82.55 22.32 - 26.79 109.04

139.70 20.83 - 23.07

24.82 21.72 18.62 15.51 12.41 9.31 6.21 3.45 - 5.52 4.83 - 6.90 67.79 - 76.33 53.87 44.25 76.07 56.48 712 204 8 x Dia. 22mm 168.28 124.38

92.08 101.60 25.30 - 29.76 122.81

146.05 29.02 - 34.23 24.82 21.72 18.62 15.51 12.41 9.31 6.21 4.14 - 6.21 6.21 - 8.27 88.25 - 96.79 50.68 38.64 69.68 44.87 743 204 8 x Dia. 22mm 177.80 129.29 92.08 101.60

168.28 29.76 - 35.72

24.82 21.72 18.62 15.51 12.41 9.31 6.21 4.14 - 6.21 6.21 - 8.27 121.88 - 130.78 44.34 37.52 60.97 34.63 845 204 8 x Dia. 22mm 203.20 150.72

111.13 127.00 41.67 - 47.62 144.15

177.80 29.76 - 38.69

24.82 21.72 18.62 15.51 12.41 9.31 6.21 3.45 - 5.52 5.52 - 7.58 121.88 - 130.78 43.00 25.17 59.12 29.45 890 204 8 x Dia. 22mm 209.55 161.32

117.48 133.35 43.16 - 47.62 156.49

193.70 39.29 - 44.20

24.82 21.72 18.62 15.51 12.41 9.31 6.21 3.45 - 5.52 5.52 - 7.58 136.15 - 143.98 39.42 21.05 54.19 23.63 1,001 204 10 x Dia. 22mm 228.60 174.09

117.48 133.35 50.15 - 58.04 171.70

219.08 41.67 - 47.62 24.82 21.72 18.62 15.51 12.41 9.31 6.21 2.76 - 4.83 4.14 - 6.21 148.43 - 157.32 41.21 23.11 56.66 26.55 1,223 204 10 x Dia. 22mm 257.18 200.71 152.40 171.70

244.48 48.07 - 53.57

24.82 21.72 18.62 15.51 12.41 9.31 6.21 2.76 - 4.83 3.45 - 5.52 171.70 - 279.94 37.51 18.88 51.57 20.53 1,334 204 10 x Dia. 22mm 282.58 224.92

171.45 197.10 59.53 - 79.62 220.70

273.05 60.27 - 67.71

19.31 16.89 14.48 12.07 9.65 7.24 4.83 1.38 - 3.45 2.07 - 4.14 148.43 - 157.32 38.81 20.36 53.36 22.64 1,668 204 10 x Dia. 22mm 311.15 251.56

203.30 222.50 75.90 - 90.33 246.48

298.50 69.94 - 80.36

17.93 15.69 13.45 11.20 8.96 6.72 4.48 1.38 - 3.45 2.07 - 4.14 148.43 - 157.32 47.82 33.63 65.75 37.73 2,313 204 12 x Dia. 22mm 346.20 276.35

228.60 247.65 89.29 - 95.24 271.32

323.85 N/A 17.93 15.69 13.45 11.20 8.96 6.72 4.48 1.38 - 3.45 2.07 - 4.14 171.70 - 279.94 40.09 21.82 55.11 24.71 1,957 204 12 x Dia. 22mm 374.65 301.90 254.00 273.05 339.73 90.78 - 107.15 17.24 15.08 12.93 10.77 8.62 6.46 4.31 1.38 - 3.45 2.07 - 4.14 171.70 - 279.94 39.42 21.05 54.19 23.63 2,669 205 12 x Dia. 22mm 381.00 314.33 266.70 285.75

NOTE: Casing weight ranges apply to API 8RD and Buttress connections only



OPERATING MANUAL Stage Collars

Contents 1. DRILLABILITY 1 2. PREPARATIONS 1 3. DRILLOUT 1

Max Torque Limits Table 2

Top-Co standard Stage Collars are equipped with aluminum sleeves that can be drilled using a PDC or Tri-Cone bit. Likewise, the opening dart and closing plug are made from a combination of rubber, phenolic plastic and aluminum and are also drillable with the same type of bits.

Top-Co Stage Collars with Phenolic Seats can be drilled using a PDC or Tri-Cone bit. Likewise, the opening dart and closing plug are made from a combination of rubber, phenolic plastic and are also drillable with the same type of bits.

During cementing of the 2nd stage, it is recommended to spot some cement slurry on top of the closing plug to help prevent the plugs from rotating during drill out. If drilling out the stage tool in a production casing, the use of a junk basket is recommended.

• Do not drill in automatic mode; maintain manual control at all time. • Do not start drilling after WOB has been established. Begin rotation before engaging the stage tool. • Drill at least 80-100 RPM. Caution: NEVER EXCEED 100 RPM. • Do not exceed 10,000 lb. WOB • Do not spud on target while drilling out. • Use a pump rate that will circulate cutti ng without decreasing bit weight on the target. • Raise and lower the bit occasionally while continuing to drill. This action will help clear junk from the bit. • Do not exceed the torque limit torque indicated on table (Table 1), keep within 70% of the maximum torque

limits during drill out. • After Drill Out is complete, pass rotational drill bit thru stage tool several times to assure Stage Collar is cleaned

out of debris.

DRILL OUT PROCEDURE

DRILLABILITY

PREPARATIONS

DRILL OUT 9.3.

9.2.

9.1.

9.




Table 1: Max Torque Limits TOOL SIZE TORQUE

(ft-lbs) TORQUE (Nm)

4” 17,586 23,843

4-1/2” 19,544 26,498

5” 21,503 29,154

5-1/2” 22,971 31,145

5-3/4” 24,401 33,083

6-5/8” 28,357 38,447

7” 29,336 39,774

7-5/8” 32,273 43,757

8-5/8” 36,190 49,067

9-5/8” 40,107 54,377

10-3/4” 44,023 59,688

12-3/4” 52,836 71,636

13-3/8” 53,815 72,963

16” 64,096 86,903

Documents

stage cementing tools OPERATING MANUAL TYPE 680 ......stage cementing tools OPERATING MANUAL TYPE 680 – Running Instructions 1. Run casing and install Top-Co 680 Stage Cementing