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April 19, 2001

Coiled-Tubing High Pressure Jet Drilling System. April 19, 2001. Dr. William C. Maurer. Technology. Exxon HP Field Test. Technology. Exxon Jet Bit. Technology. Exxon HP Field Test. Exxon High Pressure Drill Rig. HP Rotary Hose. HP Swivel. HP Pump. HP Line. High Strength Drill Pipe.

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April 19, 2001

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  1. Coiled-Tubing High Pressure Jet Drilling System April 19, 2001 Dr. William C. Maurer

  2. Technology Exxon HP Field Test

  3. Technology Exxon Jet Bit

  4. Technology Exxon HP Field Test

  5. Exxon High Pressure Drill Rig HP Rotary Hose HP Swivel HP Pump HP Line High Strength Drill Pipe HP Seal Tool-Joint Seal HP Bit

  6. Technology

  7. Technology

  8. Technology

  9. Technology

  10. Comparison of Drilling Methods Rotary Motor

  11. Technology

  12. High Pressure CT Drilling System(Single Flow) CT Reel Injector Head LP & HP Pumps Conventional Coiled Tubing HP Flow Single Flow HP Motor (Solid Rotor) Single-Flow HP Bit

  13. Project Participants • Maurer Engineering - Motors and Bits • Quality Tubing - HP Coiled Tubing • Stewart & Stevenson - CT Rig • BJ Services - Field Operations • Marathon - Operator Requirements • ARCO - Operator Requirements

  14. HP Motor Design Curtis Leitko

  15. High Pressure CT Motor (Single Flow) Titanium Drive Shaft 2 3/8” CT PDM Multilobe Rotor/Stator (3 1/8”) PDC Thrust Bearings Solid Rotor Filter High Pressure Jet Bit Titanium Flexshaft Radial Bearings/ Flow Restrictors Solid Titanium Flexshaft High Pressure Low Pressure

  16. Thrust Load on Bearing 10,000 PSI Seal Housing 34,000 lb Force Thrust Bearing Bit

  17. Candidate Bearings Ball Bearing PDC Bearing

  18. Bearing Load Comparison 100 Hours @ 300 rpm

  19. Motor Labyrinth Seals } Upper Restrictor 5” Housing Fluid Flow } Shaft Lower Restrictor 5”

  20. Motor Labyrinth Leakage Four 5” Labyrinths 10,000 psi w

  21. Advanced Geothermal Turbodrill (AGT) Bearing Pack Speed Reducer Turbine

  22. Planetary Gears Sun Gear Planet Gears Ring Gear

  23. Turbodrill Performance (RPM) (ft-lbs)

  24. HP Bit Design

  25. High Pressure Jet Bit High Pressure Jets

  26. Technology

  27. HP Coiled-Tubing Design John H. Cohen

  28. Coiled Tubing Burst Pressure(100,000 psi yield) CT Diameter (in.) Wall Thk. (in.) Burst Pressure (psi) 1.00 1.25 1.50 1.75 2.00 2.375 2.875 3.500 0.109 0.156 0.175 0.188 0.203 0.203 0.203 0.203 20,800 24,160 22,670 20,910 19,800 16,670 13,770 11,310

  29. CT FATIGUE LIFE (based on MEI CTLIFE model) QT-1000 Fatigue Life (trips) Internal Pressure (psi)

  30. Fiberspar Spoolable Products • Production Tubing - FS PT • Line Pipe - FS LP • Coiled Tubing -FS CT (for Well Servicing)

  31. First FS CT Field String6500 Ft. Length,1.5” OD

  32. CT Burst Pressure 40000 2.00 inch OD 30000 Burst Pressure (psi) 20000 10000 0 QT-1000 Incoloy-625 Composite

  33. Hybrid Coiled Tubing Composite CT Steel CT

  34. High Pressure Motor Tests John H. Cohen

  35. Dynamometer Fluid Inlet Flex Shaft Leak Tank Motor Mud Motor Dynamometer Test Stand

  36. Technology

  37. Technology

  38. Technology 2000 psi

  39. Technology 10,000 psi

  40. Technology

  41. Technology

  42. CT High Pressure Jet Drilling Rate Leauder Limestone 3-1/8” Bit Motor Motor

  43. DOE High-Pressure Coiled Tubing Drilling SystemPhase III Commercialization William C. Maurer August 8, 2000

  44. Phase III Commercialization • Start Date Oct. 1, 2000 • Phase III Budget $3,152,498 • DOE Phase III Funding $1,585,556 Objective: Field test and demonstrate prototype CT Drilling System Sub Contractors: BJ Services Quality Tubing

  45. Phase III Tasks • 1. Conduct shallow field test • 2. Modify system • 3. Conduct deep field test • 4. Develop Commercialization Plan • 5. Write Final Report

  46. Phase III Plans • Shallow field tests - Catoosa • Deeper field tests - Marathon Oil • Commercial tests - BJ Services

  47. Technology Drilling (Vertical) Conventional Coiled Tubing HP Flow High Pressure Motor High Pressure Bit

  48. Technology Jet SlottingStimulation Slots Formation Damage High Pressure Jets ROCK

  49. Formation Damage Mechanism(Timmerman, 1982) Pressure profile in the formation Pressure drop across the damaged zone Dpskin = Skin or zone of damage

  50. “ In must homogeneous matrix situations, the physical depth of solids invasion tends to be shallow (1-2 cm into the formation)” (Bennion et al., 2000)

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