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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
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
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.
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
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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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