Minerals Catalogue

Mineral Services Catalogue

Reeves Wireline Services

Oilfield Services Catalogue

This page is intentionally blank

Reeves Wireline Services provides open andcased hole logging and formation evaluationservices to hydrocarbon and mineral resourcescompanies around the world.

The describes thetools, surface systems and analysis software usedin the exploration, appraisal and development ofcoal and other non-hydrocarbon resources. Thisedition has a new easy-read format, with moreinformation on curve parameters, measure pointsand tool geometries.

For interpretation charts, borehole environ-mental corrections and more information onresponse characteristics, see the

For a detailed account of theacquisition and processing of Reeves logs, see the

For oilfield services, including production andcased hole services, refer to the

and

For Compact format services, see the.


Mineral ServicesChart Book.

Slimtool Calibration Guide.

Oilfield ServicesCatalogue, Calibration and Signal ProcessingGuide Oilfield Services Chart Book.

CompactServices Guide

Introduction

C Reeves Technologies

7

Surface Equipment

Lithology/Porosity Services

Acoustic Services

Formation Imaging and Dipmeter Services

Resistivity Services

Miscellaneous Services

Computed Products

Slimtool Service Unit - STU

Dual Density Sonde - DD SeriesDual Neutron Sonde - NN Series

Multi-Channel Compensated Sonic - MS SeriesSeismic Reference Sonde - SR SeriesSidewall Sonic Sonde - SS Series

Slim Acoustic Scanner - SAS SeriesSlim Quad Dipmeter - SQD Series3-Arm Dipmeters - DV SeriesBorehole Geometry Tool - BGT SeriesBorehole Verticality Sonde - VO SeriesGyroscopic Verticality Sonde - GYR Series

Slim Array Induction - SAI SeriesGamma Ray and Induction Sonde - GIS SeriesFocussed Resistivity Sonde - RO and RR SeriesMagnetic Susceptibility Sonde - SU Series

Miscellaneous Services - CO, GC, GL, IP, MG, NO, RS,SG and TT Series tools

Coal Analysis Products - ASH - CSEEnhanced Resolution Services - VECTARLithology Analysis Products - CLA - CLIFormation Image and Dip AnalysisAcoustic Products - MPA - FHA - SDASynthetic Seismogram - SYN

Mnemonics Index

C

1113

171921

252729313335

39414345

535455565758

59

Contents

49

SurfaceEquipment




>

>

>

>

>

>

Extreme portabilitySmall foot-printPortable PC enablesprocessing, analysisand presentationaway from thelogging unitReal-time API formatlog presentationTransmission of logdata via modem toany destinationData written todiskette or CD in LASor LIS format

Slimtool Service Unit - STU


Slimtool Service Units are highly compact, with asmall foot-print for slimhole rig operations,particularly in environmentally sensitive locations.All vehicles are equipped with extendible booms ortripods for use when the drilling rig is absent. Theycontain bolt-down skid units which incorporate thelogging winch, the surface computer and sondeinterface (SCI), PC, thermal plotter and data storagedevices. These skid units are removable forhelicopter transportation and can be installed incontainers for off-shore work. An on-board generatorsupplies all electrical requirements.

The SCI forms the interface for the communicationsfrom the sonde. It supplies sonde power and decodessonde signals, displays depth and logging speed andinteracts with the PC.

The PC controls all logging functions, commencingwith conversions from raw data to engineering units,and including environmental corrections, dipmeterand image processing and formation evaluation. APIformat logs are plotted in real time on a compacthigh quality thermal plotter. Data are recorded onhard disk and subsequently presented on floppy orCD format disks.

Winch drum capacities range from 1000 m (3280 ft)of / in (3.18 mm) cable up to 5000m (16400 ft) of/ in (4.76 mm) or / in (6.35 mm) cable.

18

316

14

Slimtool Surface Unit - STU


Porosityand

LithologyServices




The tool provides essential lithologyand porosity information in boreholes as small as 76mm (3.0 ins) in diameter.

The DD sonde is a dual detector density tool whichuses the same advanced processing as our full sizetools. The near and far measurements arecharacterised and calibrated independently, and thencombined in a model-based algorithm whichautomatically corrects for hole size and mud densityvariations, as well as mudcake effects. This results in aCompensated Density field log which needs nofurther corrections. Optional VECTAR processing ofthe compensated density produces a log with thespatial resolution of the short spaced log.

The upper log example depicts a typical coal, shaleand sandstone sequence logged with a DD Seriessonde.

Thin bed analysis uses higher sampling rates andlower logging speeds. The lower logging speedsensure acceptable counting statistics. The lowerexample shows a detailed scale presentation over a3 metre coal bearing interval using data sampledevery 0.01 metre.

Dual Density

Measurements

>

>

>

>

>

Near and Far Spaced DensitiesCompensated DensityDegree of CompensationCaliper and Hole VolumeGamma Ray

Dual Density Sonde - DD Series


>

>

>

Long and Short SpacedDensities for coalfingerprint and qualityFully compensatedVECTAR output forenhanced resolution

C

Applications

>

>

>

>

>

Coal IdentificationCoal QualityPorosity/LithologyEnhanced resolution loggingGas detection

C

Temperature (max)

Pressure (max)Well Diameter

70 C (158 F) Variants available upto 100 C (212 F) &

21 MPa (3 kpsi) 48 MPa (7 kpsi)76 to 254 mm (3.0 to 10.0 in)

0 0

0 0

0.72 (2.36)*Caliper

0 (0)m (ft)

Dual Density Sonde - DD Series

Ratings

LengthDiameterWeight (in air)

3.28 to 3.45 m (10.76 to 11.32 ft)48 mm (1.88 in)20 to 26 Kg (44 to 57 lb)

Physical Dimensions

Range

ResolutionVertical Resolution

Depth of Investigation (radial, for 90 % signal)

1000 to 3000 Kg/m(1.0 to 3.0 gm/cm )1 Kg/m (0.001 gm/cm )370 mm (14.6 in) in standard mode150 mm (5.9 in) in VECTAR mode

100 mm (3.9 in) at 2300 Kg/m(2.3 gm/cm )

3

3

3 3

3

3

Curve Parameters

C

* Caliper depth offset calculatedat 102 mm (4.0 ins) diameter


3.45 (11.32)

0.29 (0.95)Long

SpacedDensity

1.77 (5.81)Gamma

Ray

0.16 (0.52)Short

SpacedDensity

3.26 (10.70)(not on allvariants)

GammaRay

Dual Neutron logs are sensitive to variations in rocktype and porosity.

NN series tools operate in boreholes as small as 63mm (2.5 ins) in diameter. They measure the flux ofthermal neutrons at two detectors; the count rateratio produces a Compensated Porosity log that hasgreater immunity to variations in borehole size andborehole fluid salinity than single detector designs.

Logs are presented in porosity units, and arecalibrated to give true porosities in clean, water-filledlimestone formations. The combination of densityand neutron porosity allows the simultaneousdetermination of porosity and lithology (includingclay content), and is sensitive to the presence of gas.

An integral Gamma Ray is used for correlation withthe Gamma Ray on DD Series (Dual Density Sonde)tools and provides an evaluation of clay content.

Measurements

>

>

>

>

Near and Far Spaced count ratesCompensated Neutron PorosityLimestone and Sandstonematrix apparent porositiesGamma Ray

Applications

>

>

>

>

PorosityLithologyGas detectionEmpirical correlations with rockstrength in sand/shale formations

Dual Neutron Sonde - NN Series


>

>

>

Fully compensatedNear and Far detectorsfor ratio processingand greater immunityto borehole effectsIntegral Gamma Ray

0 (0)m (ft)

Dual Neutron Sonde - NN Series

2.40 (7.87)Gamma

Ray


2.60 m (8.53 ft)38 mm (1.5 in)14 Kg (31 lb)

Physical Dimensions

RangeResolution

Vertical Resolution

Depth of Investigation (radial, for 90 % signal)

-3 to 100 limestone porosity unitsbetter than 0.1 at 20 p.u. and standardconditions508 mm (20 in) in standard mode410 mm (16 in) in VECTAR mode

260 mm (10.2 in) at 20 p.u.

Curve Parameters

C


2.60 (8.53)

0.20 (0.66)NeutronPorosity

Temperature (max)




0 0

0 0

Ratings

AcousticServices




The measurescompressional (P-wave) slowness (inverse of velocity)for porosity, lithology and mechanical propertiesapplications. A variant is used as a Cement Bond Log.

The tool contains one transmitter and four receivers,giving four transit times. In compressional slowness( t) mode, pairs of first arrivals are combined toeliminate the fluid path and provide formation tmeasurements at spacings from 24 in to 48 in (60 cmto 120 cm) from the transmitter. The recorded curvesare a high resolution 20 cm curve, a 40 cm curve, along 60 cm which provides better estimates of in-situvelocities in the presence of near wellbore damageand an un-despiked 20 cm curve which can indicateformation fracturing. Borehole caving effects arereduced using a depth derived compensation system.

P-wave and S-wave velocities (measured by an SSSeries Sidewall Sonic sonde or derived fromChristensen's Equation) are combined to computePoisson's Ratio. Shear, Bulk and Young's Moduli arecalculated with the addition of density data.

In CBL mode, t and peak amplitude come from the120 cm spacing curve, and a VDL log from the 120cm waveform.

Multi-Channel Compensated Sonic

∆∆

∆

Measurements

>

>

>

>

Compensated compressional tDefault presentations of 20 cm,40 cm, 60 cm and un-despiked20 cm resolution curvesIntegrated transit timesWaveforms (CBL only)

∆


Applications

>

>

>

>

>

>

PorosityFracture detectionSeismic time to depth conversionMechanical propertiesFracture height analysisCement bond quality (CBL only)

>

>

>

Borehole compensatedcompressional logsImproved velocityestimates fromdamaged intervalsMechanical Propertiesand Fracture Heightprocessing

Multi-Channel Compensated Sonic - MS Series

RangeResolutionVertical Resolution

Depth of Investigation

0 to 820 s/m (0 to 250 s/ft)0.82 s/m (0.25 s/ft)600 mm (24 in) 400 mm (16 in) and200 mm (8 in)For practical purposes, transit timesin isotropic formations may beregarded as originating at theborehole wall. The actual depth ofinvestigation depends on the radialvelocity profile.

µ µµ µ

Temperature (max)



21 MPa (3 kpsi) 48 MPa (7 kpsi)76 mm (3.0 in) min. - no practicalmaximum for an eccentred tool

0 0

0 0

Ratings

Curve Parameters ( t curves)∆

LengthDiameter

Weight (in air)

3.36 m (11.02 ft)51 mm (2.01 in) - without centralisers65 mm (2.56 in) - with centralisers16 Kg (35 lb) - without centralisers22 Kg (48 lb) - with centralisers

Physical Dimensions

Multi-Channel Compensated Sonic - MS Series

0 (0)m (ft)

Sonic t(40 cm)

∆1.47 (4.82)


3.36 (11.02)

Sonic t(60 cm)

∆1.57 (5.15)

Sonic t(20 cm)

∆1.77 (5.81)

Sonic t(20 cm)

∆1.37 (4.49)

The carries a sensitivegeophone to detect an acoustic pulse travelling from aseismic source at ground level. A powerful motordriven caliper arm ensures that the sonde is lockedsecurely against the borehole wall while themeasurement is taking place.

The seismic source is normally a high pressure airgunplaced in a fluid filled pit for efficient acousticcoupling. This can be replaced by conventionalexplosive seismic sources or by the client's own wavepropagating device.

The time taken for the energy to travel from surfaceto geophone is recorded for each depth station in theborehole. These times are used to calibrate integratedtimes from sonic logs as part of the SyntheticSeismogram generation process.

Seismic Reference Sonde

Measurements

>

>

>

>

Mean times (ms)Corrected 2-way times (ms)Average and RMS velocities tospecific horizons (m/s or ft/s)Interval velocities betweenspecific horizons (m/s or ft/s)

Applications

>

>

>

SRS or VSP surveysCheck shot data for calibration ofsonic log integrated travel timesTime to depth calibration ofsurface seismic sections

Seismic Reference Sonde - SR Series


>

>

Simple, robust designfor reliabilityCalibration of time todepth for surfaceseismic surveys

0 (0)m (ft)

Seismic Reference Sonde - SR Series


2.39 to 2.75 m (7.84 to 9.02 ft)50 to 60 mm (1.97 to 2.36 in)20 to 23 Kg (45 to 51 lb)

Physical Dimensions


2.75 (9.02)max.

1.99 (6.53)Geophone

Ratings

Temperature (max)




0 0

0 0

The records the acousticwaveforms whilst the tool is stationary in theborehole. These are used to generate point sampledcompressional and shear velocity measurements.

The tool comprises a transducer section, motorisedcaliper and electronics cartridge. The transducers aredirectional and are pressed against the borehole wallby the caliper mechanism.

During operation, the transmitter is continuouslypulsed and stimulates the borehole wall directly -waveforms are recorded from the lowermost receiver.The transducer separation of 0.50 m (1.64 ft) allowsthe compressional and shear components to separateon the waveform.

The waveforms are recorded on a PC where they areanalysed interactively. The compressional first arrivalis picked directly. A window of data around the firstarrival is then correlated with the rest of thewaveform to form a correlelogram which is used toidentify the shear arrival. P-wave and S-wavevelocities are then used to compute Poisson's Ratio. Ifformation densities are available, then Young's, Bulkand Shear Moduli are also calculated and displayed.

Sidewall Sonic Sonde

Measurements

> Acoustic waveform

Applications

>

>

>

Determination of compressionaland shear rock velocitiesPoisson's RatioMechanical Rock Properties(when merged with density data)

Sidewall Sonic Sonde - SS Series


>

>

>

Simple, robust designDirect measurement ofP-wave and S-wavevelocities from therecorded waveformPoisson's Ratio

Borehole :Depth : 1080.00 Sequence No. =

t p s

Young's modulus = 32.8 (Gpa) Density = 2.61 gm/ccBulk modulus = 24.6 (Gpa) P-wave velocity = 4.01 Km/secondShear modulus = 12.8 (Gpa) S-wave velocity = 2.22 Km/secondPoisson's ratio = .27 Delta t-p = 249 microsec/mS/P ratio = 1.8 Delta t-s = 449 microsec/m

0 (0)m (ft)

Sidewall Sonic Sonde - SS Series


3.67 m (12.04 ft)45 mm (1.77 in)20 Kg (44 lb)

Physical Dimensions

RangeResolutionVertical ResolutionDepth of Investigation

0 to 512 microseconds1 microsecondPoint measurementSurface measurement

Curve Parameters


3.67 (12.04)

Temperature (max)Pressure (max)Well Diameter

70 C (158 F)21 MPa (3 kpsi)76 to 254 mm (3.0 to 10.0 in)

0 0

Ratings

0.58 (1.90)Transmitter

0.08 (0.26)Receiver

FormationImaging

andDipmeterServices




Measurements

>

>

>

>

>

Oriented and dynamicallynormalised Amplitude imageOriented and dynamicallynormalised Transit Time(borehole diameter) image360 degree caliperBorehole trajectoryGamma Ray

Applications

>

>

>

>

Fracture identification andorientationStress orientation from breakoutBed boundary orientationSedimentological andstructural studies

Slim Acoustic Scanner - SAS Series


C

The gives high resolutionformation images in wells as small as 76 mm (3.0 in)in diameter.

Amplitude and Transit Time images are constructedwhilst recording data from a rotating acoustic trans-ducer. Two transducers are available to cover tworanges of hole size. Their size, shape and operatingfrequency have been carefully chosen to give a goodbalance between spatial resolution and immunity toenvironmental factors. A special windowless housingenhances resolution and gives an excellent signal-to-noise ratio.

Analysis of the images reveals bed boundaries,fractures and other discontinuities in the rock, andborehole enlargements related to rock mechanicalproperties and earth stresses.

Real-time display is supported by andanalysis software.

Slim Acoustic Scanner

Q-ScanPC ImagePro

>

>

>

Slim hole formationimagingChoice of transducerfor optimum hole sizeresponseWindowless transducerenhances resolutionand improvessignal-to-noise

C

250

1272

250

250

250

250

250

1274

1275

1276

1273

Length

DiameterWeight (in air)

5.53 m (18.15 ft) with centralisers3.54 m (11.60 ft) without centralisers54 mm (2.13 in)51 Kg (112 lb) with centralisers34 Kg (74 lb) without centralisers

Physical Dimensions (incl. Navigation sub)5.53 (18.15)with in-linecentralisers3.54 (11.60)withoutcentralisers

0 (0)m (ft)

Slim Acoustic Scanner - SAS Series

0.15 (0.49)

4.51 (14.81)with in-linecentralisers3.45 (11.30)withoutcentralisers

GammaRay

Temperature


-20 to 70 C (-4 to 158 F)(extended range on request)48 MPa (7 kpsi)76 to 254 mm (3.0 to 10.0 in)

0 0 0 0

Ratings

Range

Resolution

Circumferential Resolution

Detection Threshold

Amplitude 64 dBTransit Time 0 to 255 microsecondsAmplitude 0.25 dBTransit Time 0.5 microseconds

7 degrees - equivalent to 9 mm(0.35 in) in a 152 mm (6.0 in)water-filled wellThe tool detects features smaller than1 mm (0.04 in) in a 152 mm (6 in)diameter water-filled well

Curve Parameters

AcousticAmplitudes& Transit

Times


The is designed for operationsin wells as small as 76 mm (3.0 in) in diameter. Itprovides four focussed microresistivity measurementsand tool orientation data - these are used to computeformation dips and wellbore trajectory. Analysis ofpatterns generated by successive dips providesimportant information about depositional andstructural environments.

The microresistivity measurements are made by smallelectrodes embedded in four pads on two pairs oforthogonal caliper arms. These are correlated toproduce formation dips. The and

software products provide fully automatedand interactive analysis options, as well as acomprehensive range of geological interpretationtools.

Slim Quad Dipmeter

Q-DipPC ImagePro

Measurements

>

>

>

>

>

Microresistivity tracesSonde navigation data (from thenavigation sub)Gamma RayX-Y calipersBorehole trajectory

Applications

>

>

>

>

>

>

Formation dip and azimuthSedimentological studiesPalaeoenvironment studiesStructural studiesTVD analysisBreakout analysis

Slim Quad Dipmeter - SQD Series


C

>

>

>

>

Slim hole formationdip analysisRobust 4-arm designIntegral Gamma RayIndependent X-Ycalipers for boreholebreakout analysis

C


5.15 m (16.88 ft)57 mm (2.25 in)32 Kg (70.5 lb)

Physical Dimensions (incl. Navigation sub)

0 (0)m (ft)

Slim Quad Dipmeter - SQD Series

0.13 (0.43)*Micro-

resistivity

0.92 (3.02)Gamma

Ray

Temperature


-20 to 85 C (-4 to 185 F)(extended range on request)51 MPa (7.5 kpsi)76 to 254 mm (3.0 to 10.0 in)

0 0 0 0

Ratings

Range

ResolutionVertical ResolutionDepth of Investigation

Microresistivity 2 to 10000 m(Rm = 10 m)0.05 to 2500 m(Rm = 0.01 m)

No practical limit10 mm (0.4 in)6.35 mm (0.25 in) nominal per pad

ΩΩ

ΩΩ

Curve Parameters



5.15 (16.88)

The is designed for operations inwells as small as 76 mm (3.0 in) in diameter. Itprovides three focussed microresistivity measurementsand tool orientation data - these are used to computeformation dips and wellbore trajectory. Analysis ofpatterns generated by successive dips providesimportant information about depositional andstructural environments.

The microresistivity measurements are made by smallelectrodes embedded in three pads on three caliperarms. These are correlated to produce formation dips.The and software productsprovide fully automated and interactive analysisoptions, as well as a comprehensive range ofgeological interpretation tools.

Some variants have special pads for high resistivitycontrast applications. Other variants are available forlogging high deviation boreholes.

3-Arm Dipmeter

Q-DipPC ImagePro

Measurements

>

>

>

>

>

Microresistivity tracesSonde navigation data (from thenavigation sub)Borehole trajectoryReal time formation dip tadpolesReal time structurally correcteddip tadpoles

Applications

>

>

>

>

>

Formation dip and azimuthSedimentological studiesPalaeoenvironment studiesStructural studiesTVD analysis

3-Arm Dipmeter - DV Series


C C

>

>

>

Slim hole formationdip analysisReal time formationor structurallycorrected tadpoleprocessingUltra-high resolution

Length (max)Diameter (max)Weight (in air)

4.51 to 5.26 m (14.80 to 17.26 ft)48 to 64 mm (1.89 to 2.52 in)25 to 36 Kg (54 to 79 lb)


5.26 (17.26)max.

0 (0)m (ft)

0.14 (0.46)*Micro-

resistivity

Range

ResolutionVertical ResolutionDepth of Investigation

0 to 5000 counts per second -equivalent formation resistivitydepends on pad type and boreholefluid resistivityNo practical limit10 mm (0.4 in)6.3 mm (0.25 in) nominal per pad

Curve Parameters



3-Arm Dipmeter - DV Series



0 0

Ratings

The is designed foroperations in wells as small as 76 mm (3.0 in) indiameter. It is run in combination with a VO Seriesverticality sonde which provides borehole navigationdata. Twin orthogonal calipers supply independentmeasurements of well diameter. These two sets ofmeasurements enable orientation of the X- and Y-calipers to magnetic, grid or true north. Lateral stressorientations can then be computed from boreholeBreakout - the phenomenon of localised elongation ofthe borehole lateral axis in a preferred orientation.

Borehole Geometry Tool

Measurements

>

>

>

>

>

X- and Y-calipersSonde navigation data (from thenavigation sub)Gamma RayBorehole trajectoryBorehole breakout

Applications

>

>

>

>

Stress orientation from breakoutHole size determinationHole volume determinationTVD analysis

Borehole Geometry Tool - BGT Series


>

>

>

>

Breakout orientationin slim holesIntegral Gamma RayBorehole trajectoryAccurate hole size andvolume determination

Length (max)Diameter (max)Weight (in air)

6.24 m (20.47 ft)57 mm (2.25 in)46 Kg (101 lb)


6.24 (20.47)

0 (0)m (ft)

Range

ResolutionVertical Resolution

X & Y calipers 152 to 610 mm(6.0 to 24.0 in)

No practical limitTypically 0.5 mm (0.02 in)

Curve Parameters

* Caliper depth offsets calculatedat 102 mm (4.00 ins) diameter


Borehole Geometry Tool - BGT Series



0 0

Ratings

1.50 (4.92)*Y-Caliper

2.55 (8.37)Gamma

Ray

0.57 (1.87)*X-Caliper

The is designed foroperations in wells as small as 76 mm (3.0 in) indiameter. It may be logged as a stand alone tool (forborehole navigation data only) or in combinationwith either DV or SQD Series slim dipmeters (forformation dip and azimuth) or with BGT Series X-Ycaliper tools (for stress orientation from boreholebreakout).

Its five component navigation system providescontinuous directional data in open hole or plasticcased environments. Variants are available that canmeasure from the vertical to the horizontal.

Standard output includes graphical presentations ofcross section (polar position plot) for up to 10 depthlevels, vertical sections and depth correction (TrueVertical Depth) analysis. Additionally, all data ispresented in a tabular format that includes lateral andpolar co-ordinates.

Borehole Verticality Sonde

Measurements

>

>

>

>

X, Y and Z magnetometersX and Y tilt measurementsSonde navigation dataBorehole trajectory

Applications

>

>

>

>

>

>

Borehole tilt and azimuthOrientation of dip data from DVand SQD Series dipmetersOrientation of borehole breakoutfrom BGT Series toolsTVD analysisDefault tabular presentations ofborehole lateral and polarco-ordinates at all depthsField magnitude log for detectionof magnetically anomalous zones

Borehole Verticality Sonde - VO Series


>

>

Five componentorientation systemVertical to horizontaltilt range options

50.00

PLOT WITH RESPECT TO TRUE NORTH

SCALE 1:1000

DECLINATION 28.0 DEG.

25.00

FINAL BOREHOLE POSITION

THE LAST PLOTTED DEPTH IS AT23.57 MS NORTH, 34.88 MS

WEST IE. 42.10 MS FROM THEORIGIN, 304 DEG FROM TRUE NORTH

ALL FIGURES IN LOG DEPTHTARGET ORIGIN DEPTH.....3.00LAST PLOTTED DEPTH......239.00DEPTH MARKERS ANNOTATEDIN MULTIPLES OF.........20FIRST DEPTH MARKER AT...20LAST DEPTH MARKER AT....220

MS

BOREHOLE POSITIONAL ERROR

THE TWO BOXES SURROUNDINGTHE LAST PLOTTED DEPTH SHOWTHE TYPICAL, AND MAXIMUM,POSITIONAL ERROR AT THATDEPTH.

75.00

LOGDEPTH

-7.00CORRECTION FOR TRUE DEPTH

-6.00-4.00.00-1.00 -3.00 -5.00

3.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

180.0

200.0

220.0

.0

-2.00

VERTICAL SCALE 1:2000

HORIZONTAL SCALE 1:100

TRUE

146.56148.51150.46152.41154.35156.30158.24160.18162.12164.06165.99167.92169.85171.77173.69175.61177.52179.43181.33183.24185.14187.04188.93190.82192.70194.59196.47198.35200.22202.09203.95205.81207.67209.52211.38213.23215.08216.92218.76220.60222.44224.28226.11227.94229.77231.54232.30

LOG

148.00150.00152.00154.00156.00158.00160.00162.00164.00166.00168.00170.00172.00174.00176.00178.00180.00182.00184.00186.00188.00190.00192.00194.00196.00198.00200.00202.00204.00206.00208.00210.00212.00214.00216.00218.00220.00222.00224.00226.00228.00230.00232.00234.00236.00238.00239.00

TRUE

4.006.008.00

10.0012.0014.0016.0018.0020.0022.0024.0026.0028.0030.0032.0034.0036.0037.9939.9941.9943.9945.9947.9949.9851.9853.9755.9757.9659.9561.9463.9365.9267.9169.8971.8873.8675.8477.8279.8081.7883.7585.7387.7089.6791.6493.6195.5897.5499.51

101.47103.44105.40107.36109.33111.29113.25115.21117.17119.14121.10123.06125.02126.98128.94130.90132.86134.82136.78138.73140.69142.65144.61

LOG

4.006.008.00

10.0012.0014.0016.0018.0020.0022.0024.0026.0028.0030.0032.0034.0036.0038.0040.0042.0044.0046.0048.0050.0052.0054.0056.0058.0060.0062.0064.0066.0068.0070.0072.0074.0076.0078.0080.0082.0084.0086.0088.0090.0092.0094.0096.0098.00

100.00102.00104.00106.00108.00110.00112.00114.00116.00118.00120.00122.00124.00126.00128.00130.00132.00134.00136.00138.00140.00142.00144.00146.00

60.00

(TRUE DEPTH VS DISPLACEMENT)

MARKERS ANNOTATEDAS ABOVE



3.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

180.0

WEST

200.0

220.0

40.00.00-40.00-60.00 -20.00 20.00

.0

EAST

60.00

3.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

180.0

NORTH

200.0

220.0

40.00.00-40.00-60.00 -20.00 20.00

.0

SOUTH


2.58 m (8.46 ft)42 mm (1.65 in)10 Kg (22 lb)

Physical Dimensions

2.58 (8.46)

0 (0)m (ft)

Borehole Verticality Sonde - VO Series

Ratings

Range

Resolution

Tilt 0 to 45 (standard)0 to 90 (optional)

Azimuth 0 to 360Tilt 0.25 typicalAzimuth 1 typical

0

0 0

0 0

0

0

0

Curve Parameters


Temperature (max)




0 0

0 0

Ratings

The provides highlyaccurate positional information in boreholes as smallas 76 mm (3.0 in) in diameter. It is designed tooperate in steel cased boreholes where conventionalmagnetometer-based verticality tools cannot function.

The tool operates on the principle that the spin axisof a rotating gyroscope maintains a fixed positionwith respect to the earth, regardless of the orientationof the outer casing. By measuring the relativepositions of the casing and the spin axis, the toolorientation can be deduced.

Standard output (identical to that from the VO SeriesVerticality tools) includes graphical presentations ofcross section (polar position plot) for up to 10 depthlevels, vertical sections and depth correction (TrueVertical Depth) analysis. Additionally, all data ispresented in a tabular format that includes lateral andpolar co-ordinates.

Gyroscopic Verticality Sonde

>

>

>

>

>

Azimuth from gyroscopic inertiaAzimuth from magnetometersX and Y tilt measurementsSonde navigation dataBorehole trajectory

>

>

>

>

Continuous borehole tilt andazimuth in open-hole or steelcased slim boreholesTVD analysisDefault tabular presentations ofborehole lateral and polarco-ordinates at all depthsDifferences between inertial andmagnetic azimuths can indicatemagnetically anomalous zones

Gyroscopic Verticality Sonde - GYR Series


>

>

Borehole navigationdata inside steel casingSix componentorientation system

50.00

PLOT WITH RESPECT TO TRUE NORTH

SCALE 1:1000

DECLINATION 28.0 DEG.

25.00

FINAL BOREHOLE POSITION

THE LAST PLOTTED DEPTH IS AT23.57 MS NORTH, 34.88 MS

WEST IE. 42.10 MS FROM THEORIGIN, 304 DEG FROM TRUE NORTH

ALL FIGURES IN LOG DEPTHTARGET ORIGIN DEPTH.....3.00LAST PLOTTED DEPTH......239.00DEPTH MARKERS ANNOTATEDIN MULTIPLES OF.........20FIRST DEPTH MARKER AT...20LAST DEPTH MARKER AT....220

MS

BOREHOLE POSITIONAL ERROR

THE TWO BOXES SURROUNDINGTHE LAST PLOTTED DEPTH SHOWTHE TYPICAL, AND MAXIMUM,POSITIONAL ERROR AT THATDEPTH.

75.00

LOGDEPTH

-7.00CORRECTION FOR TRUE DEPTH

-6.00-4.00.00-1.00 -3.00 -5.00

3.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

180.0

200.0

220.0

.0

-2.00



TRUE

146.56148.51150.46152.41154.35156.30158.24160.18162.12164.06165.99167.92169.85171.77173.69175.61177.52179.43181.33183.24185.14187.04188.93190.82192.70194.59196.47198.35200.22202.09203.95205.81207.67209.52211.38213.23215.08216.92218.76220.60222.44224.28226.11227.94229.77231.54232.30

LOG

148.00150.00152.00154.00156.00158.00160.00162.00164.00166.00168.00170.00172.00174.00176.00178.00180.00182.00184.00186.00188.00190.00192.00194.00196.00198.00200.00202.00204.00206.00208.00210.00212.00214.00216.00218.00220.00222.00224.00226.00228.00230.00232.00234.00236.00238.00239.00

TRUE

4.006.008.00

10.0012.0014.0016.0018.0020.0022.0024.0026.0028.0030.0032.0034.0036.0037.9939.9941.9943.9945.9947.9949.9851.9853.9755.9757.9659.9561.9463.9365.9267.9169.8971.8873.8675.8477.8279.8081.7883.7585.7387.7089.6791.6493.6195.5897.5499.51

101.47103.44105.40107.36109.33111.29113.25115.21117.17119.14121.10123.06125.02126.98128.94130.90132.86134.82136.78138.73140.69142.65144.61

LOG

4.006.008.00

10.0012.0014.0016.0018.0020.0022.0024.0026.0028.0030.0032.0034.0036.0038.0040.0042.0044.0046.0048.0050.0052.0054.0056.0058.0060.0062.0064.0066.0068.0070.0072.0074.0076.0078.0080.0082.0084.0086.0088.0090.0092.0094.0096.0098.00

100.00102.00104.00106.00108.00110.00112.00114.00116.00118.00120.00122.00124.00126.00128.00130.00132.00134.00136.00138.00140.00142.00144.00146.00

60.00

(TRUE DEPTH VS DISPLACEMENT)

MARKERS ANNOTATEDAS ABOVE



3.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

180.0

WEST

200.0

220.0

40.00.00-40.00-60.00 -20.00 20.00

.0

EAST

60.00

3.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

180.0

NORTH

200.0

220.0

40.00.00-40.00-60.00 -20.00 20.00

.0

SOUTH


4.68 m (15.35 ft)46 mm (1.81 in)24 Kg (52 lb)

Physical Dimensions

4.68 (15.35)

0 (0)m (ft)

Gyroscopic Verticality Sonde - GYR Series

Ratings

Curve Parameters


Ratings

Temperature (max)




0 0

0 0

Range

Resolution

Tilt 0 to 70 (30 to 70 withspin axis alignment)

Azimuth 0 to 360Tilt 0.25 typicalAzimuth 1 typical

0 0 0

0 0

0

0

0

ResistivityServices




The has all the features of thefull size Array Induction Sonde in a tool just 57 mm(2.25 in) in diameter. This makes it one of the mostadvanced tools of its type currently available.

The SAI provides formation resistivity data inwellbores containing non-conductive or low salinitydrilling fluids. Its single transmitter and multiplereceiver design not only makes it very short, butallows multiple independent measurements that makeit possible to control the vertical and radial investi-gation characteristics to suit the logging environment.

The processing software computes up to six resistivitycurves, ranging from the shallow penetrationApparent Rxo to the very deep Apparent Rt. InVECTAR mode, the vertical resolution of each curveis matched to that of the shortest coil array. An imageof the invasion profile is generated by the VIVIDprocessing option which delineates profile shapes,and, in particular, those of annulus profiles (whichare indicative of moveable hydrocarbons).

Slim Array Induction

Measurements

>

>

>

>

Formation conductivity atmultiple spacingsSPGamma RayTemperature

Applications

>

>

>

>

Resistivity in air-filled holesWater saturationPorosityInvasion profiling

>

>

>

Advanced array designfor slim wellsVECTAR processingfor an enhanced highresolution presentationVIVID invasionprofile imaging

Slim Array Induction - SAI Series

C

C

C

C


Ratings


5.78 m (18.96 ft)57 mm (2.25 in)50 Kg (110 lb)

Physical Dimensions

Slim Array Induction - SAI Series


Depth of Investigation (median radial)

0 to 10 S/m ( to 0.1 m)0.0025 S/m1.0 m (3.3 ft) in VECTAR modeand Rt > 200 m

For Rxo = Rt and Rt > 100 m :0.3 to 1.2 m (12 to 47 in)

Ω

Ω

Ω

Curve Parameters

C

0 (0)m (ft)

5.78 (18.96)

1.19 (3.90)Conductivity

Resistivity

3.10 (10.15)

0.52 (1.71)SP

TemperaturePressure (max)Well Diameter

-40 to 125 C (-40 to 257 F)86 MPa (12.5 kpsi)76 to 305 mm (3.0 to 12.0 in)

0 0 0 0


Temperature

The tool is an ultra-slimdevice that measures formation conductivity inboreholes containing non-conductive or low salinitydrilling fluids.

The tool contains a transmitter coil that is driven withan alternating current operating at 20 kHz. A singlereceiver coil responds to the eddy currents inducedin the surrounding rocks by the transmitter. Themagnitude of the received signal is directlyproportional to the conductivity of the rock.

A combination of very small diameter and ability tolog in air-filled holes makes this sonde ideal forshallow hole exploration environments.

An integral Gamma Ray aids correlation with otherlog data and and other boreholes - not all variantshave this facility.

Gamma Ray and Induction>

>

>

Ultra-slim design forsmall diametershallow hole loggingQuadrature and In-Phase conductivitiesIntegral Gamma Ray

Gamma Ray and Induction Sonde - GIS Series


Measurements

>

>

>

In-Phase ConductivityQuadrature ConductivityGamma Ray

Applications

>

>

>

Location of conductive anomaliesDetermination of porosity andwater saturationLithology identication

Ratings


3.32 m (10.88 ft)41 mm (1.61 in)9 Kg (20 lb)

Physical Dimensions

Gamma Ray and Induction Sonde - GIS Series


0 to 5 S/m ( to 0.2 m)0.001 S/m0.5 m (1.64 ft)

Ω

Curve Parameters

0 (0)m (ft)

3.14 (10.29)Gamma Ray*


3.32 (10.88)



0 0

0.68 (2.23)Induction

* not available on all variants

The tools are ultra-slim laterologsfor resistivity determinations in small diameterboreholes containing conductive fluids.

The tools make resistivity measurements ata single depth of investigation to produce a shallowreading Focussed Resistivity curve with excellentvertical resolution.

tools have two sense electrodes thatsimultaneously record Deep and Shallow FocussedResistivity curves. Both have the same high verticalresolution.

Deep and shallow curves are standardised for a 4 inchdiameter well where the ratio of Apparent Resistivityto Mud Resistivity is 20.

Gamma Ray and/or Temperature options are availableon some variants of both Series of tools.

Focussed Resistivity

RO Series

RR Series

>

>

>

Ultra-slim design forvery small holesSingle or dual depthsof investigationExcellent verticalresolution

Focussed Resistivity Sonde - RO and RR Series


Measurements

Applications

>

>

>

>

Resistivity in water-filled holesWater saturationCoal RankFracture identification

>

>

>

>

>

Focussed Resistivity (RO Series)Deep ResistivityShallow ResistivityGamma RayTemperature

(some variants only)

(RR Series)

Length


3.75 m (12.30 ft) - without bridleup to 15.05 m (49.38 ft) - with bridle38 mm (1.50 in)14 Kg (31 lb)

(RR Series) - depicted

Focussed Resistivity Sonde - RO and RR Series

0 (0)m (ft)


3.75 (12.30)

2.80 (9.19)ShallowFocussedResistivity

Ratings

RangeVertical ResolutionDepth of Investigation (median radial, 4 inch normalisation)

0.2 to 20,000 m0.1 m (4.0 in)

For Rxo = Rt and Rt > 100 m :Deep 0.30 m (12 in)Shallow 0.20 m (8 in)

Ω

Ω

Curve Parameters

Temperature (max)




0 0

0 0

Length


1.92 m (6.30 ft) - without bridleup to 12.30 m (40.35 ft) - with bridle38 mm (1.50 in)15 Kg (33 lb)

Physical Dimensions (RO Series)

1.53 (5.02)Deep

FocussedResistivity

The is based onelectromagnetic induction principles. It comprises atransmitter coil and a balanced receiver coil set upso that the direct coupling signal from thetransmitter is cancelled out when the tool is in ahomogenous environment. The proximity ofmagnetic materials produces mutual imbalanceswhose magnitudes depend in part on themagnetic susceptibility of the earth formations.

The tool responds to signals in phase (R-signals) andout of phase (X-signals) with the transmitter. It is theX-signals that are more sensitive to the presence ofmagnetic materials. Some variants record the X-signal only.

SU Series tools are calibrated directly in cgs units, orin conductivity units (mS/m) depending on type.

Magnetic Susceptibility Tool

Measurements

> Magnetic Susceptibility/ApparentConductivity

>

>

Detection of ironbearing and associatedmineralsSuitable for very slimboreholes

Magnetic Susceptibility Sonde - SU Series


Applications

>

>

Detection of magneticanomalies

Heavy mineral prospecting

Ratings


0.86 m(2.82 ft)43 mm (1.69 in)5 Kg (11 lb)

Physical Dimensions

Magnetic Susceptibility Sonde - SU Series

Range(0.00001 to 1 cgs units0 to 10,000 mS/m for some variants)

Vertical Resolution 30 mm (for 10 mm sampling)Some variants : 500 mm

Curve Parameters

0 (0)m (ft)

0.16 (0.52)Magnetic

Susceptibility


0.86 (2.82)

Temperature (max)

Pressure (max)

50 C (122 F) Variants availableup

to 90 C (194 F) &7 MPa (1 kpsi) 48 MPa (7 kpsi)

0 0

0 0


MiscellaneousServices



The table below lists additional sondes for specialist applications. Availability is limited - please referto your local Reeves representative.

Series

Miscellaneous Services


CO

GC

GL

IP

MG

NO

RS

SG

TT

3-Arm Caliper 3-Arm Caliper Borehole diameterHole volume

Gamma Ray, 3-Arm Caliper Gamma Ray Correlation& Casing Collar Locator 3-Arm Caliper Borehole diameter

CCL Hole volumeDrill rod or casing

joint locator

Gamma Ray & Casing Gamma Ray x3 CorrelationCollar Locator CCL Drill rod or casing

joint locator

Induced Polarisation IP Base metal detectionLong Normal Water saturationShort NormalSPLateral Resistivity

Microguard Sonde Gamma Ray CorrelationCaliper Borehole diameterMicro-Resistivity Hole volume

Thin bed analysis

Neutron Sonde Neutron Porosity PorosityRock strength in

sand/shale formations

Spontaneous Potential SP & Single Point Water saturation& Resistance Sonde Resistance Coal Rank

Spectral Gamma Sonde Gamma Ray CorrelationPotassium % Clay mineral typeThorium % Clay volumeUranium %

Temperature Sonde Temperature Temperature profiles- Absolute Ingress of fluid or gas- Difference into a borehole- Differential

Sonde Name Measurements Applications



ComputedProducts





The takes the Ash Analysis astage further by incorporating sonic data to produce aMoisture content in addition to Mineral Matter andCoal Substance (the in-situ equivalents of theProximate Analysis volumes). End points for thesecomponents are defined by reference to sonic/densitycrossplots. If a laboratory derived ash/densityrelationship is available then Ash percentage willreplace Mineral Matter in the analysis.

A high resolution log such as the Bed ResolutionDensity is used to divide the coal seam into intervalsof consistent density and sonic travel time - manualor automatic blocking may be carried out. Theblocking log is applied to long or short spaceddensities (depending on borehole conditions) andsonic transit times. Finally, the CSE algorithm isapplied to the blocked data to solve for coal, mineralmatter (or ash) and moisture content by volume. Atabular summary of percentage by weight of floatsand sinks completes the analysis.

Coal Seam Evaluation

Ash Analysis - ASH

Coal Seam Evaluation - CSE

The uses DD Series density data and acore derived ash/density relationship to produce avolumetric analysis of coal ash.

A high resolution log such as the Bed ResolutionDensity is used to divide the seam into intervals ofconsistent density - manual or automatic blockingtechniques are available. The blocking log is appliedto either long or short spaced densities, depending onborehole conditions and the degree of detail required.The final step is implementation of the ash/densityalgorithm to the blocked density data to define thecoal and ash constituents by volume. A tabularsummary of percentage by weight of floats and sinkscompletes the analysis.

Ash Analysis SHADING KEY

REPLAYSCALE1:40

CALIPERINCHES

11 6

ANALYSIS BY VOLUMEPERCENT

0 50 100

COAL

DENSITYGM/CC

1 1.50 2 2.50 3

DEPTHIN

METRES

MINERAL MATTER

CAVING

752

750

748

GAMMA RAYAPI

200 150 100 50 0

SHADING KEY

REPLAYSCALE1:40

CALIPERINCHES

11 6


0 50 100

COAL

GAMMA RAYAPI

0 100 200

DEPTHIN

METRES

20 CM TRANSIT TIMEMICRO-SEC/FT

140 90 40

MINERAL MATTER

CAVING

MOISTURE CONTENT

752

750

748

DENSITYGM/CC

1 2 3

VECTAR Enhanced Resolution Services

Upper left :

Lower left :

Right :

CompensatedDensity andVECTAR highresolution densitywith an acousticamplitude image.

CompensatedSonic andMicrosonic curves.Dipmeter pad traceshown forcomparison.

Array Inductiondata. Compare thestandard Deep(black) andVECTAR Deep(white) plottedover the InvasionProfile image.VECTAR alsoresolution matchesall inductioncurves.

C


C

C

C

VECTAR acquisition and processing enhances the resolution ofsome conventional logs by between 50 and 300 %, givingimproved bed thickness, more confident quality evaluation,precise core correlation and tighter pay zone estimates in thinlybedded and complex formations.

The VECTAR technique extracts high resolution informationfrom multi-detector measurements and adds it back to standardborehole compensated logs. It is available for CompensatedDensity and Array Induction logs, where it is also used in thegeneration of invasion profile images (VIVID ). In most cases,data needs to be acquired at higher than normal sample rates.

The splits the rockmatrix into quartz sand, limestone and dolomitebased on density (Pe input is an option) and neutronporosity curves, with shale volumes and correctionscalculated from the gamma ray or SP. The analysisalso screens for halite and anhydrite. Hydrocarbonand moved hydrocarbon volumes are computed fromany deep and shallow reading resistivity logs usingArchie, Simandoux or Indonesia saturation equations.

Complex Lithology Analysis (CLI)


The uses asimple three component rock model comprisingmatrix, shale and porosity whose values are derivedfrom density and gamma ray logs.

Coals are computed separately based on the densitylog response, with additional quality control inputfrom the caliper log.

Computed Lithology Analysis (CLA)

Computed Lithology Analysis - CLA

Complex Lithology Analysis - CLI

2190

2200

2210

2180

COMPENSATED DENSITYGM/CC

1.95 2.45 2.95REPLAYSCALE1:200

EFFECTIVE POROSITYPERCENT

100 50 0

GAMMA FROM DENSITY TOOLAPI

0 100 200

CALIPER FROM DENSITYINCHES

3 8 13

LIMEST NEUTRON POROSITYPERCENT

45 15 -15

DEPTHIN

METRES

VOLUME OF SHALEPERCENT

0 50 100

SHADING KEY

LIMESTONE

WATER FILLEDPOROSITY

SHALE

HYDROCARBON FILLEDPOROSITY

ANHYDRITE HALITE

DOLOMITE SANDSTONE

SHADING KEY

CAVE

POROSITY

SHALE COAL

710

720

REPLAYSCALE1:100

CALIPERINCHES

11 6


0 50 100

DENSITYGM/CC

1 2 3

DEPTHIN

METRES

GAMMA RAYAPI

0 100 200

MATRIX

Formation Image and Dipmeter Analysis

Formation image and dipmeter data are valuable sources ofgeological information relating to structures (folds, faults,unconformities and structural dips), to sedimentary geology(facies, bedform orientations and palaeocurrent directions)and to stress orientationsor breakouts.

Software solutions commencewith wellsite quality controland quick look products, andextend to and

which providedifferent levels of automatedand interactive analyses. Thedetailed results and statisticsfrom these procedures formthe raw materials used byspecialist interpreters.

Q-logPC ImagePro C

C


Above :3D borehole imageformed by superimposingamplitudes on wrappedtravel time data.

Top right :

Centre :

Bottom :

Interactive stereo plot showing classified dips.

Dipmeter image log merged with an SAS amplitudeimage over a coal-shale-sand sequence.

Azimuth vector plot.


The ( - left)provides the link between seismic timedata and depth. The process starts bymatching integrated slowness values froma sonic log and interval two-way timesfrom a seismic check shot survey.Differences between the two sets of valuesare called drift. They are caused bydispersion (velocity dependence onacoustic frequency) and borehole qualityeffects.

Sonic Drift Analysis corrects for theseeffects by applying block or differentialshifts to the sonic log over intervalsdefined on a drift curve analysis plot.

Sonic Drift Analysis SDA

Acoustic Products - MPA - FHA - SDA

Fracture Height Analysis FHA

Mechanical Properties Analysis(MPA

( - right) predicts thevertical extent and width of an induced fracture as afunction of applied pressure, the mechanicalproperties of the rock and the depths and lengths ofassociated perforated intervals.

It is based on classic poroelastic theory and a recentmodel of fracture behaviour. It uses dynamic elasticmoduli from the

- also right) and the results of lithologicalanalysis.

Compressional and shear slowness data define theformation dynamic Poisson's Ratio used informulating vertical and horizontal stressrelationships. Adding formation density allows theremaining elastic moduli and fracture closure pressureto be computed. The delta pressure required topropagate a fracture follows from the addition oflithology dependent fracture toughness information.

UNCORRECTED SONIC S/FTMS

KNEE POINT: DEPTH RANGE: 49.50 - 777.50 M.

CHECK SHOT:

DRIFT IS POSITIVE WHEN INTEGRATED SONIC>SHOT TIME

DEPTH: METRES. SCALE: 5000:1

40-30 -20 -10 0 10 20 30 140

DRIFT

DRIFT CURVE DATA

457.30

200

400

500

700

100

300

600

50.00

775.50

302.10

Synthetic Seismogram - SYN

Synthetic seismograms generated from sonic and density log dataallow specific horizons to be correlated to reflectors observed onseismic sections. They can help differentiate primary reflectorsfrom events caused by multiples.

The process commences with re-samplingsonic and density logs using two-way timeincrements at depths determined by theSonic Drift Analysis. The two logs arecombined to form an acoustic impedancelog from which it is possible to computesequences of reflection coefficients withassociated transmission losses - see above.

A Primary seismogram is formed byconvolving the reflection coefficients witha wavelet - ideally this should be extractedfrom the seismic survey data. Energy frommultiple reflections is added to that fromthe primaries to from the the finalSynthetic Seismogram - see left.


SYNTHETIC SEISMOGRAMPLOTTED 5-JAN-98 17:34DEPTH RANGE 55.00 - 770.00 M.TIME INTERVAL .0000 - .4530 SECONDSTIME SCALE 20 CM/SECSAMPLING INCREMENT .00100 SECONDS2-WAY TIME PLOTTEDRICKER WAVELET USEDWHITE TROUGH -> INC. ACOUSTIC IMPEDANCE

COMPANYWELLFIELDCOUNTYCOUNTRY/STATELOCATIONFILE MRGEDF01.CIBRUN IDRUN DATE, TIME 5-JAN-98 15:34

.44

.42

.40

.38

.36

.34

.32

.14

.12 200

.08

.06

.04

.02

.00

.30

.28

.26

.24

.22

.20

.18

.16

.10

300

400

500

600

700

100

TIME SAMPLED INPUT DATAPLOTTED 5-JAN-98 16:34DEPTH RANGE 55.00 - 770.00 M.TIME INTERVAL .0000 - .4530 SECONDSTIME SCALE 20 CM/SECSAMPLING INCREMENT .00100 SECONDS2-WAY TIME PLOTTED+VE REFL-> INCREASING ACOUSTIC IMPEDANCE

.44

.42

.40

.38

.36

.34

.32

.14

.12 200

.08

.06

.04

.02

.00

.30

.28

.26

.24

.22

.20

.18

.16

COMPANYWELLFIELDCOUNTYCOUNTRY/STATELOCATIONFILE MRGEDF01.CIBRUN IDRUN DATE, TIME 5-JAN-98 15:34

.10

300

400

500

600

700

100

Mnemonics Index


ASH

BGT

CLACLICSE

DDDV

FHA

GCGISGLGYR

IP

MGMPAMS

NNNO

RORRRS

SAISASSDASGSQDSRSSSTUSUSYN

TT

VECTARVO

Ash Analysis

Borehole Geometry Tool

Computed Lithology AnalysisComplex Lithology AnalysisCoal Seam Evaluation

Dual Density Sonde3-Arm Dipmeter

Fracture Height Analysis

Gamma Ray, CCL and 3-Arm CaliperGamma Ray and Induction SondeGamma Ray and CCLGyroscopic Verticality Sonde

Induced Polarisation

Microguard SondeMechanical Properties AnalysisMulti-Channel Compensated Sonic

Dual Neutron SondeNeutron Sonde

Focussed Resistivity SondeDual Focussed Resistivity SondeSpontaneous Potential and Resistance Sonde

Slim Array InductionSlim Acoustic ScannerSonic Drift AnalysisSpectral Gamma SondeSlim Quad DipmeterSeismic Reference SondeSidewall Sonic SondeSlimtool Service UnitMagnetic Susceptibility SondeSynthetic Seismogram

Temperature Sonde

Enhanced Resolution ServicesBorehole Verticality Sonde

53

31

555553

1129

57

49414935

49

495717

1349

434349

392557572719217

4558

49

5433

C

Reeves Wireline Services

UK & International

USA

Canada

Australia

Website

East LeakeLoughboroughLeicestershireLE12 6JX

Tel: (44) 115 945 1700Fax: (44) 115 940 5373

BPB Wireline Services2408 South Purdue AvenueOklahoma City OK73128-1826

Tel: (1) 405 681 1095Fax: (1) 405 685 7501

Allegheny Wireline ServicesPO Box 506777 North River AvenueWeston WV 26452

Tel: (1) 304 269 2009Fax: (1) 304 269 6328

500, 500 - 5th Avenue S.W.CalgaryAlberta T2P 3L5

Tel: (1) 403 234 9144Fax: (1) 403 237 5480

11 Moonbi StreetPO Box 5465Brendale, BrisbaneQueensland 4500

Tel: (61) 7 3881 1969Fax: (61) 7 3881 0005

www.reeves-wireline.com

Documents

Minerals Catalogue