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© 2008 Halliburton. All Rights Reserved.
Production Enhancement Technologies for Shale, Tight Sand,
and Coal Plays9th US-China Oil and Gas Industry Forum
Sept 27-29, 2009
Jim McGowenSenior Technical Advisor
Adelaide, Australia
Present Completion Strategies• Shales or Tight Sands
– Multi-Stage Fracturing in Vertical or Horizontal Wells
• Coals– Horizontal Wells without Stimulation (single seams)– Under-Reaming/Cavitation in Vertical Wells (> 10 md)– Multi-Stage Fracturing in Vertical Wells
Critical Technology Items• Reservoir Quality Identification
– Limitations of Logging & Lack of Pre-Frac Flow Tests– Diagnostic Fracture Injection Tests– Fracturing Sweat Spot Identification
• Drilling Technology for Horizontals
• Hydraulic Fracturing Technology– Multi-staging Methods– Fracture Mapping
Diagnostic Fracture Injection Tests
• To Determine– Formation KH– Reservoir Pressure– In-Situ Stress
• Very Useful in low Perm where obtaining KH Data is Difficult
Job Data
9/08/200414:50 15:00 15:10 15:20
9/08/200415:30
Time
3000
4000
5000
6000
7000
8000
9000
10000
11000A
0
2
4
6
8
10
12
14
16B
(ISIP = 8784)
Corrected Actual BH Pres (psi)Slurry Rate (bpm)
AB
321
1
2
3
Start
Shut In
Stop
Time14:48:56
14:55:44
15:37:17
CABP9049
8889
5518
SR4.600
0.744
0.000
H A L L IB U R T O NStimWin v4.8.216-May-07 18:06
ACA - Cartesian Pseudoradial
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Radial Flow Time Function
4000
4500
5000
5500
6000
6500
7000
7500
8000
(m = 14339)
Calc'd BH Pressure (psi)
ResultsReservoir Pressure = 4161.68 psiTransmissibility, kh/µ = 135.08501 md*ft/cpkh = 3.38177 md*ftPermeability, k = 0.0217 mdStart of Pseudo Radial Time = 1.81 hours1
Analysis Events
1 Start of Pseudoradial FlowRFTF0.10
CBP5489
H A L L IB U R T O NStimWin v4.8.216-May-07 17:14
Multi-Staging using Coil Tubing –Shallow Wells
• Perforate all Zones First• Straddle Packer System• Frac down Coil (2 7/8”)
Multi-Staging using Coil Tubing in Deep Wells
• 1 3/4” Coil Used to Jet Perforations• Frac done in Casing-Coil Annulus • Isolation using Sand Plugs• Applicable for Verticals & Horizontals
Multi-Staging Horizontal Completion using Swell Packers and Sleeves
• Balls can be used to shift Sleeves, allowing rapid frac operations.
Multi-Staging with SIMOPS• Concurrent Operations on
Multiple Wells on a Pad• Coil/Wireline/Frac/Drilling• Planning is Essential