CA2246504A1 - Downhole flow stimulation in a natural gas well - Google Patents
Downhole flow stimulation in a natural gas wellInfo
- Publication number
- CA2246504A1 CA2246504A1 CA002246504A CA2246504A CA2246504A1 CA 2246504 A1 CA2246504 A1 CA 2246504A1 CA 002246504 A CA002246504 A CA 002246504A CA 2246504 A CA2246504 A CA 2246504A CA 2246504 A1 CA2246504 A1 CA 2246504A1
- Authority
- CA
- Canada
- Prior art keywords
- natural gas
- gas well
- downhole flow
- flow stimulation
- motor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000002343 natural gas well Substances 0.000 title abstract 2
- 230000000638 stimulation Effects 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
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.
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.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96200589.8 | 1996-03-05 | ||
EP96200589 | 1996-03-05 | ||
PCT/EP1997/001145 WO1997033070A2 (en) | 1996-03-05 | 1997-03-05 | Downhole flow stimulation in a natural gas well |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2246504A1 true CA2246504A1 (en) | 1997-09-12 |
CA2246504C CA2246504C (en) | 2005-01-11 |
Family
ID=8223746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002246504A Expired - Fee Related CA2246504C (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)
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 |
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 |
GB0314553D0 (en) | 2003-06-21 | 2003-07-30 | Weatherford Lamb | 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 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3035759A (en) * | 1957-11-13 | 1962-05-22 | Gen Electric | Rotor and stator construction |
DE2424290C2 (en) * | 1974-05-18 | 1986-06-05 | Papst-Motoren GmbH & Co KG, 7742 St Georgen | Brushless DC motor with a flat air gap |
US4276490A (en) * | 1977-12-16 | 1981-06-30 | Vernitron Corporation | Brushless DC motor with rare-earth magnet rotor and segmented stator |
GB8820444D0 (en) * | 1988-08-30 | 1988-09-28 | Framo Dev Ltd | Electric motor |
JP2928615B2 (en) * | 1990-09-28 | 1999-08-03 | 株式会社日立製作所 | Turbo vacuum pump |
GB9022056D0 (en) * | 1990-10-10 | 1990-11-21 | Shell Int Research | Apparatus for compressing a fluid |
US5605193A (en) * | 1995-06-30 | 1997-02-25 | Baker Hughes Incorporated | Downhole gas compressor |
-
1997
- 1997-03-05 WO PCT/EP1997/001145 patent/WO1997033070A2/en active IP Right Grant
- 1997-03-05 EP EP97907078A patent/EP0883732B1/en not_active Expired - Lifetime
- 1997-03-05 CA CA002246504A patent/CA2246504C/en not_active Expired - Fee Related
- 1997-03-05 DK DK97907078T patent/DK0883732T3/en active
-
1998
- 1998-09-04 NO NO19984079A patent/NO315580B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO315580B1 (en) | 2003-09-22 |
DK0883732T3 (en) | 2003-08-25 |
EP0883732B1 (en) | 2003-07-02 |
NO984079D0 (en) | 1998-09-04 |
CA2246504C (en) | 2005-01-11 |
WO1997033070A3 (en) | 1997-12-04 |
NO984079L (en) | 1998-09-04 |
EP0883732A2 (en) | 1998-12-16 |
WO1997033070A2 (en) | 1997-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20170306 |