Rotary Steerable Systems vs. Rotary Steerable Systems vs. Performance Motor Assemblies Performance Motor Assemblies

66thth June 2012June 2012

Samuel BrownSamuel BrownBDM - PathFinder Eastern Europe

ContentsContents

Directional Drilling Market Directional Drilling Market Benefits of RSS vs. Motors Borehole Quality Examples Schlumberger Rotary Steerable Systemsg y y Conclusion

Directional Drilling Marketg

Rotary Steerable System Benefitsy y

ALL Parts of the tool rotate all the times Fast ROP Better hole clean up Better hole clean-up Full Backreaming Capabilities Reduce Stuck Pipe Potential

N A l B ttl k No Annular Bottlenecks Can Kick Off from Vertical. Inclination & Azimuth at Bit. 2-ways telemetry Gamma-ray detector – Improve hole placement

Performance Motor Assembly Benefitsy

Drill-rig with low rotary generation capability

High Dog Leg High Dog Leg

Cost Sensitive Markets

2D well trajectory– The whole well is in the same vertical plane

St i i l t t i li ti– Steering mainly use to correct inclination– Occasionally to correct azimuth

Hole Quality – Example 1y pDrilling with RSS

G d H l Q litGood Hole QualitySmooth profile

Good gauge

Drilling with Motor

Good gaugeNo spiralling

Poor hole quality

Examples Motor vs. RSSp

Motor RSS

Schlumberger Rotary Steerable Systems

ArcherPowerDrive X5/X6 Power V Xceed vorteX Archer

High DLS RSSIncreased efficiency

Everything RotatesProven workhorseO 75 Milli F t

PowerDrive X5/X6 Power V

Vertical only systemCompletely automaticMi i l l

XceedUnique designMinimal contactUnique capability

DH Powered RSSX5, X6 or XceedIncreased efficiency

vorteX

Over 75 Million Feet

15 ½ – 28inBit Sizes

Minimal personnel

15 ½ – 28inBit Sizes

Unique capability Increased efficiency

15 ½ – 28inBit Sizes

8 ½in – 9

12in – 14 ¾inBit Sizes

10 5/8 - 11 5/8in Bit Size

8 ½in – 9

12in – 14 ¾inBit Sizes

10 5/8 - 11 5/8in Bit Size

8 ½in - 9 7/8

12 ¼in – 17 ½inBit Sizes

8 ½in – 9

12in – 14 ¾inBit Sizes

10 5/8 - 11 5/8in Bit Size

8 ½in – 8 ¾in8 ½in 9 7/8inBit Sizes5 ½in – 6 ¾in Bit Sizes

8 ½in 9 7/8inBit Sizes5 ½in – 6 ¾in Bit Sizes

8 ½in 9 7/8 inBit Sizes

8 ½in 9 7/8inBit Sizes5 ½in – 6 ¾in Bit Sizes

Bit Sizes

6in – 6 ¾inBit Sizes

PowerDrive X6

‘Push-the-bit' system which steers by utilizingPush the bit system which steers by utilizingPads to push against the side of the well bore

Pads sequentially push against the side of Pads sequentially push against the side ofthe borehole as the drill string rotates pushingthe bit in the right direction

All parts of the tool Rotate (including pads)

PowerDrive X6 SystemString Stabilizer Control Unit Bias unitFlex Joint

Bias Unit consists of internal rotary valve controlling the hydraulic actuation of 3 externally mounted padsy p

Control Unit Electronics Package mounted within collar, totally i d d t f t i t ti f findependent of string rotation from surface

Stabilizer 3rd point of contact – Real-Time link electronics

Flex Joint Decouples directional assembly - increases DLS capability

powerV: ROP in the vertical direction

F ll t ti Fully rotating Vertical seeking

– Automatic correction back to vertical– Automatic correction back to vertical Closed loop drilling system

– No requirement for operator or MWD to orient

BenefitsRemoves need for correction runs

K l fi ld i T i i Chi

– Removes need for correction runs– More WOB for more ROP– Well placement accuracy

Kela field in Tarimin, China Any hole size– 5 ½ in. to 28 in.

The PowerV Advantageg

PowerV Case Study: Vertical Drillingy gLocation: CEU Total of 2800 m vertical section drilled 750 750

-20 -15 -10 -5 0 5 10 15 20

Field: MiglianicoStructure: MiglianicoDate: June 15, 2003

Vertical Section Plot

Total of 2800 m vertical section drilled Significant Increase in ROP over

offset

750

900

1050

1200

1350

750

900

1050

1200

1350

– 16” (1736m): 21% > ROP– 12 ¼” (1060m): 24% > ROP

W ll l t d 15 d h d f AFE

1500

1650

1800

1950

1500

1650

1800

1950

50(m

)

– Well completed 15 days ahead of AFE Maintained 0.18° deviation over

section

2100

2250

2400

2550

2100

2250

2400

2550

TVD

Sca

le =

1:1

5

section– Equivalent to 0.73m total displacement – Based on this performance it would be

ibl t hit 3 di t t i

2700

2850

3000

3150

2700

2850

3000

3150

possible to hit a 3m radius target in a 6000m well

3300

3450

3600

3300

3450

3600-20 -15 -10 -5 0 5 10 15 20

Mig2Dir Final Survey Report

PowerDrive Xceed

Fully rotating system Electric motor orientates bit shaft 7 – 8°/30m Hole sizes – 8½ to 17½ in. Open hole sidetracking capability Real time, near bit inclination and azimuth

i f tiinformation Downhole hold inclination and azimuth control

Case Study: PowerDrive XceedNorsk Hydro drills sidetrack in one run

Challenge

y

– INjord field– Openhole sidetrack at 91º inclination.

SolutionSolution– Sidetrack initiated at 91º inclination at

4,246 m – MD geosteered to TD using VISION MD geosteered to TD using VISION

Formation Evaluation, Imaging While Drilling realtime density images and near-bit data from the PowerDrive X dXceed

Results– Additional reservoir contact achieved – Norsk Hydro saved more than USD

200,000.

PowerDrive vorteX

Integrated rotor stator power section Integrated rotor stator power section Integrated rotor stator power section High torque output Optimized penetration rates

Integrated rotor stator power section High torque output Optimized penetration rates Reduced casing wear Increased weight on bit capability Integrated downhole filter

Reduced casing wear Increased weight on bit capability Integrated downhole filter Integrated downhole filter All-rotating steering section Proven reliability

Integrated downhole filter All-rotating steering section Proven reliability Cruise control functionality Cruise control functionality

Versatile stabilizer placement Full reaming/backreaming capability Problem formations

Versatile stabilizer placement Full reaming/backreaming capability Problem formations Challenging downhole environment Rig/top drive limitations Challenging downhole environment Rig/top drive limitations

Case Study: PowerDrive vorteXyNorth Sea Operator Doubles Penetration Rate

Challenge Drill chalk interval in one run at high

ROP while achieving directional objectivesobjectives

Solution U hi h t P D i t X Use high-torque PowerDrive vorteX

running PowerDrive Xceed steering section for accurate steering

Results Drilled 2,931ft chalk interval in a single

run at average ROP of 50 ft/hr. Met all directional objectives

PowerDrive Archer RSS

Delivers well profiles previously only possible with motors yet Delivers well profiles previously only possible with motors—yet with the ROP and wellbore quality of a fully rotating RSS

18

PowerDrive ArcherA New Tool for the Drilling EngineerDeli er here other RSS cannotDeliver where other RSS cannot

High DLS capabilityg S capab ty– Stay vertical longer, push kick off deeper– Faster drilling, reduced cost– Reduced riskReduced risk– Enter reservoir earlier

Fast reliable openhole sidetracks Fast, reliable openhole sidetracks

DLS assurance– Control in unconsolidated formations– Punch through hard layers

Summaryy

Today Schlumberger can deliver a RSS Service that could potentially drill any Well profile that was previously only possible with a motorany Well profile that was previously only possible with a motor

Reduce risk Reduce cost Increase hydrocarbon production

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Questions