Sperry Drilling New LWD Technology. Mike Dautel Petrophysics Manager Asia Pacific

Transcription

1 Sperry Drilling New LWD Technology Mike Dautel Petrophysics Manager Asia Pacific

2 Complete LWD Formation Evaluation Azimuthal Gamma Ray Directional Sensors Multi-Depth Resistivity Imaging Azimuthal Density Neutron Porosity Multipole Sonic Formation Pressure Magnetic Resonance Pulser or EM Formation Evaluation Geosteering High Resolution Imaging Formation Pressure Fluid ID and Samples Near Bit Gamma and Azimuthal Gamma Images Formation Evaluation Density Imaging Compressional and Shear Slowness Crossed Dipole Anisotropy T1 and T2 logging Bound and Free fluids 2

3 New LWD Technologies GeoTap IDS Fluid Identification and Sampling XBAT Crossed Dipole Azimuthal Sonic GeoSharp All Mud Imager 3

4 GeoTap IDS Fluid ID and Sampling

5 GeoTap IDS Benefits Replace WL runs Obtain samples sooner Reduced pumpout times Less invasion Obtain high quality samples Real-time Fluid ID Obtain samples or FID in high angle / horizontal wells WL conveyance difficult or impossible Eliminate pilot holes Large time and cost savings in high spread rate operations 5

6 Pumpout Time (minutes) Rig Time Savings - Pumpout Time Leaky mudcake Good mudcake 10 Base Case 1 Base Case Invasion Time (hours)

7 GeoTap IDS 6 ¾ tool for 8 ⅜ - 10 ¾ hole 11.2m - no sample collar 14.8m - 1 sample collar Single Oval Pad Probe 150 C, 30kpsi Fluid ID Sensors Pressure, Temperature, Resistivity, Density Optical coming Multiple bubble points while pumping out

8 GeoTap IDS 100cc draw down chamber Use existing wireline RDT bottles 1 liter PVT quality, N 2 charged option 5 bottles / collar, 3 collars IATA and DOT approved Integrated collar; sample bottles field removable Pumps on for fluid pump out and sampling 4000 and 8000 psi pumps 60 and 30 cc/sec

9 GeoTap IDS Hardware Terminator Collar Sample Collar (Optional) Power Collar Probe Collar

10 Oval Pad Extended 10

11 GeoSpan Down Link 2 way communications with tool Change test parameters downhole Same unit used with GeoPilot Rotary Steerable drilling system

12 Real-time tool control 12

13 Fluid Density Sensor 13

14 Sample Chamber QC Non invasive QC at rig site Same as RDT Ensure sample integrity Pressure Volume Estimate contamination Fluid ID Density Compressibility Compare with downhole Fluid ID

15 Sample Chamber QC

16 Sample Chamber QC

17 GeoTap IDS Deepwater Example BG Norway Exploration well Drilled with LWD and GeoTap FTWD OBM Hole conditions limited WL runs GeoTap IDS run on a wiper trip Long invasion time

18 Real-time Pretests X, X, X, X, X, X, X, TEST SUMMARY PRESSURES: Pstop1 X,762.5 (psig) Pstop X,762.0 (psig) Pexact X,762.0 (psig) Phyd1 X,803.1 (psig) Phyd2 X,810.2 (psig) Pdd_start X,250.9 (psig) Pdd_end X,724.9 (psig) TEST PARAMETERS: Tool Mode Normal Toolface 37.3 (deg) DD Volume 15.0 (cc) DD Rate 1.0 (ccps) QUALITY FACTORS: Beta (psig) Alpha 1.00 (sec) Sigma 0.70 ( psig) RESULTS: Good Buildup Stability Mobility: 89 (md/cp) Quartz Pressure Exact Curve X,

19 Real-time Pump Out and Fluid Samples

20 Quartz Pressure (psia) Density (gm/cc) Pump Rate (cc/sec) XX,000 X.X0 XX,800 XX,600 XX,400 Density (gm/cc) XX,200 XX,000 Pressure (psi) XX,800 Pump Rate (cc/sec) XX,600 XX,400 XX,200 X.X0-0.10

21 Contamination % Density (gm/cc) Real-Time Contamination Estimate 33 minutes for 50% Contamination X57 90 Density Data Contamination Sample Sample Time (minutes) 0.X50

22 Contamination % Density (gm/cc) Real-Time Contamination Estimate 3 hours additional pumping needed for 5% X Density Data Contamination % Contamination Time (minutes) 0.X50

23 XBAT Azimuthal Sonic

24 QBAT Overview Provides wireline-quality compressional and shear measurements in fast and slow formations Hole sizes from 6 to 36 Used for porosity determination, seismic correlation, and wellbore stability applications Provides cased hole logs and identify fractures Monopole, dipole and quadrupole modes 2 firings Programmable source frequencies 24

25 XBAT Azimuthal Sonic Azimuthally sensitive creates azimuthal images for geosteering and acoustic anisotropy Fast and Slow Shear Slowness and anisotropy azimuth 4 azimuthal transmitters, 4 azimuthal arrays of receivers (6 in each array) 4 azimuthal acoustic calipers Up to 8 firing modes Broad Band Source 6 ¾ and 8 tools available; 4 ¾ and 9 ½ in testing

26 Cross Dipole Firing 26

27 LWD Cross Dipole 27

28 Azimuthal LWD Sonic Image 28

29 Fast and Slow Shear 29

30 4-axis Ultrasonic Calliper

31 Accounting for tool position 2011 HALLIBURTON. ALL RIGHTS RESERVED.

32 Azimuthal Sonic Geosteering 85 usec/ft 60 usec/ft 32

33 GeoSharp All Mud Imager

34 GeoSharp All Mud Imager Integrated OBM and WBM Imager Resistivity Geology and bedding Ultrasonic Fractures, vugs, borehole geometry Dynamic focussing Motion compensation 6 ¾ tool for 8 ½ hole

35 Acoustic and Resistivity Imaging Dual ultrasonic transducers (350 khz) Acoustic image resolution ~0.15 inches Resistivity image resolution ~1.0 inches Requires 10:1 ratio between mud resistivity & formation resistivity Acoustic and resistivity images complement each other

36 Dynamic Transducer Focusing 36

37 Dynamic Transducer Focusing

38 LWD vs. WL Ultrasonic Images

39 High Resolution Ultrasonic Image 39

40 GeoSharp Ultrasonic Image Open Fracture ft inch ft 874 AFR GeoSharp AMI CAST-F Stabilizer impression in borehole wall ft inch ft 865 AFR GeoSharp AMI CAST-F

41 LWD Ultrasonic and Resistivity

42 OBM Resistivity Image 42

43 Thank You