WO1997033070A3 - Downhole flow stimulation in a natural gas well - Google Patents

Downhole flow stimulation in a natural gas well Download PDF

Info

Publication number
WO1997033070A3
WO1997033070A3 PCT/EP1997/001145 EP9701145W WO9733070A3 WO 1997033070 A3 WO1997033070 A3 WO 1997033070A3 EP 9701145 W EP9701145 W EP 9701145W WO 9733070 A3 WO9733070 A3 WO 9733070A3
Authority
WO
WIPO (PCT)
Prior art keywords
natural gas
gas well
downhole flow
flow stimulation
motor
Prior art date
Application number
PCT/EP1997/001145
Other languages
French (fr)
Other versions
WO1997033070A2 (en
Inventor
Boer Wilhelmus Petrus Henri De
Peter John Collins
Egbert Leonardus Cox
Vyvian Anthony Cox
Marinus Carolus Adrianu Peters
Original Assignee
Shell Int Research
Shell Canada Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shell Int Research, Shell Canada Ltd filed Critical Shell Int Research
Priority to EP97907078A priority Critical patent/EP0883732B1/en
Priority to DK97907078T priority patent/DK0883732T3/en
Priority to CA002246504A priority patent/CA2246504C/en
Publication of WO1997033070A2 publication Critical patent/WO1997033070A2/en
Publication of WO1997033070A3 publication Critical patent/WO1997033070A3/en
Priority to NO19984079A priority patent/NO315580B1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E21B43/128—Adaptation of pump systems with down-hole electric drives
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

Fluid flow in a natural gas well is stimulated by means of a downhole multi-stage rotary compressor (10) which is driven by an electric motor (6). Preferably the compressor shaft (9) is equipped with gas journal bearings (12), the motor is a brushless permanent magnet motor which is capable of operating at a speed above 5000 RPM and which directly drives the compressor shaft (9), and the production tubing (1) is thermally insulated by evacuated the surrounding annular space.
PCT/EP1997/001145 1996-03-05 1997-03-05 Downhole flow stimulation in a natural gas well WO1997033070A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP97907078A EP0883732B1 (en) 1996-03-05 1997-03-05 Downhole flow stimulation in a natural gas well
DK97907078T DK0883732T3 (en) 1996-03-05 1997-03-05 Flow stimulation down in a natural gas well
CA002246504A CA2246504C (en) 1996-03-05 1997-03-05 Downhole flow stimulation in a natural gas well
NO19984079A NO315580B1 (en) 1996-03-05 1998-09-04 Method and apparatus for increasing fluid flow in a gas well

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96200589 1996-03-05
EP96200589.8 1996-03-05

Publications (2)

Publication Number Publication Date
WO1997033070A2 WO1997033070A2 (en) 1997-09-12
WO1997033070A3 true WO1997033070A3 (en) 1997-12-04

Family

ID=8223746

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/001145 WO1997033070A2 (en) 1996-03-05 1997-03-05 Downhole flow stimulation in a natural gas well

Country Status (5)

Country Link
EP (1) EP0883732B1 (en)
CA (1) CA2246504C (en)
DK (1) DK0883732T3 (en)
NO (1) NO315580B1 (en)
WO (1) WO1997033070A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2362901B (en) 2000-06-03 2004-03-31 Weir Pumps Ltd Downhole gas compression
GB0022411D0 (en) 2000-09-13 2000-11-01 Weir Pumps Ltd Downhole gas/water separtion and re-injection
GB2384274A (en) * 2002-01-16 2003-07-23 Corac Group Plc Downhole compressor with electric motor and gas bearings
GB0314553D0 (en) 2003-06-21 2003-07-30 Weatherford Lamb Electric submersible pumps
GB0314550D0 (en) 2003-06-21 2003-07-30 Weatherford Lamb Electric submersible pumps
US7701106B2 (en) 2003-06-21 2010-04-20 Oilfield Equipment Development Center Limited Electric submersible pumps
GB0426585D0 (en) 2004-12-06 2005-01-05 Weatherford Lamb Electrical connector and socket assemblies
CA2599447C (en) 2007-06-18 2013-07-16 Global Energy Services Ltd. Pumping installation for a gas producing well
GB2490149A (en) * 2011-04-20 2012-10-24 Corac Group Plc Magnetic gearbox with gas bearings

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035759A (en) * 1957-11-13 1962-05-22 Gen Electric Rotor and stator construction
US4125792A (en) * 1974-05-18 1978-11-14 Papst Motoren Kg Brushless D-C motor
US4276490A (en) * 1977-12-16 1981-06-30 Vernitron Corporation Brushless DC motor with rare-earth magnet rotor and segmented stator
EP0357317A1 (en) * 1988-08-30 1990-03-07 Framo Developments (U.K.) Limited Electric motor
EP0477924A1 (en) * 1990-09-28 1992-04-01 Hitachi, Ltd. Turbo vacuum pump
EP0480501A1 (en) * 1990-10-10 1992-04-15 Shell Internationale Researchmaatschappij B.V. Down hole pump with compressor
GB2302892A (en) * 1995-06-30 1997-02-05 Baker Hughes Inc Downhole gas compressor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035759A (en) * 1957-11-13 1962-05-22 Gen Electric Rotor and stator construction
US4125792A (en) * 1974-05-18 1978-11-14 Papst Motoren Kg Brushless D-C motor
US4276490A (en) * 1977-12-16 1981-06-30 Vernitron Corporation Brushless DC motor with rare-earth magnet rotor and segmented stator
EP0357317A1 (en) * 1988-08-30 1990-03-07 Framo Developments (U.K.) Limited Electric motor
EP0477924A1 (en) * 1990-09-28 1992-04-01 Hitachi, Ltd. Turbo vacuum pump
EP0480501A1 (en) * 1990-10-10 1992-04-15 Shell Internationale Researchmaatschappij B.V. Down hole pump with compressor
GB2302892A (en) * 1995-06-30 1997-02-05 Baker Hughes Inc Downhole gas compressor

Also Published As

Publication number Publication date
CA2246504C (en) 2005-01-11
WO1997033070A2 (en) 1997-09-12
EP0883732A2 (en) 1998-12-16
EP0883732B1 (en) 2003-07-02
NO315580B1 (en) 2003-09-22
NO984079L (en) 1998-09-04
NO984079D0 (en) 1998-09-04
CA2246504A1 (en) 1997-09-12
DK0883732T3 (en) 2003-08-25

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