Sperry Drilling

New LWD Technology

Mike Dautel

Petrophysics Manager

Asia Pacific

Complete LWD Formation Evaluation

Directional

Sensors

Azimuthal

Gamma

Ray

Multi-Depth

Resistivity

Imaging

Azimuthal

Density

Neutron

Porosity

Multipole

Sonic

Formation

Pressure

Magnetic

Resonance

Pulser or

EM

Near Bit Gamma and Azimuthal Gamma Images

Formation Evaluation

Geosteering

High Resolution Imaging

Formation Evaluation

Density Imaging

T1 and T2 logging

Bound and Free fluids

Formation Pressure

Fluid ID and Samples

Compressional and Shear Slowness

Crossed Dipole Anisotropy

2

New LWD Technologies

GeoTap IDS

– Fluid Identification and Sampling

XBAT

– Crossed Dipole Azimuthal Sonic

GeoSharp

– All Mud Imager

3

GeoTap IDS – Fluid ID and Sampling

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

Rig Time Savings - Pumpout Time

1

10

100

1000

1 10 100

Invasion Time (hours)

Pu

mp

ou

t T

ime

(m

inu

tes

)

Base Case 1

Base Case 2

Leaky mudcake

Good mudcake

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

GeoTap IDS

100cc draw down chamber

Use existing wireline RDT bottles

1 liter PVT quality, N2 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

GeoTap IDS Hardware

Terminator Collar

Sample Collar (Optional)

Power Collar

Probe Collar

Oval Pad Extended

10

2 way communications with tool

Change test parameters downhole

Same unit used with GeoPilot Rotary Steerable drilling system

GeoSpan Down Link

Real-time tool control

12

Fluid Density Sensor

13

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

Sample Chamber QC

Sample Chamber QC

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

Real-time Pretests

X,

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 23.60 (psig)

Alpha 1.00 (sec)

Sigma 0.70 (psig)

RESULTS:

Good Buildup Stability

Mobility: 89 (md/cp)

Quartz Pressure

Exact Curve

Real-time Pump Out and Fluid Samples

Pressure (psi)

Density (gm/cc)

Pump Rate (cc/sec)

XX,000

XX,800

XX,600

XX,400

XX,200

XX,000

XX,800

XX,600

XX,400

XX,200

X.X0 Q

uart

z P

ressu

re (

psia

)

X.X0

-0.10

Den

sit

y (

gm

/cc)

Pu

mp

Rate

(cc/s

ec)

40

50

60

70

80

90

100

0 5 10 15 20 25 30 35 40

Time (minutes)

Conta

min

ation %

Density Data

Contamination

Real-Time Contamination Estimate 33 minutes for 50% Contamination

Sample 2

Sample 1

Density (

gm

/cc)

0.X57

0.X50

Real-Time Contamination Estimate 3 hours additional pumping needed for 5%

0

10

20

30

40

50

60

70

80

90

100

0 50 100 150 200

Time (minutes)

Co

nta

min

atio

n %

Density Data

Contamination

Density (

gm

/cc)

0.X57

0.X50

5% Contamination

XBAT Azimuthal Sonic

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

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

XBAT Azimuthal Sonic

Cross Dipole Firing

26

LWD Cross Dipole

27

Azimuthal LWD Sonic Image

28

Fast and Slow Shear

29

4-axis Ultrasonic Calliper

Accounting for tool position

© 2011 HALLIBURTON. ALL RIGHTS

RESERVED.

Azimuthal Sonic Geosteering

32

85 usec/ft 60 usec/ft

GeoSharp All Mud Imager

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

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

Dynamic Transducer Focusing

LWD vs. WL Ultrasonic Images

High Resolution Ultrasonic Image

39

GeoSharp Ultrasonic Image

Stabilizer impression in borehole wall

ft 864

ft 865

1 inch

AFR GeoSharp AMI CAST-F

AFR GeoSharp AMI CAST-F

ft 873

ft 874

1 inch

Open Fracture

LWD Ultrasonic and Resistivity

OBM Resistivity Image

42

Thank You