CA2246504A1 - Downhole flow stimulation in a natural gas well - Google Patents

Downhole flow stimulation in a natural gas well

Info

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
Application number
CA002246504A
Other languages
French (fr)
Other versions
CA2246504C (en
Inventor
Wilhelmus Petrus Henricus De Boer
Egbert Leonardus Cox
Peter John Collins
Vyvian Anthony Cox
Marinus Carolus Adrianus Maria Peters
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Canada Ltd
Original Assignee
Shell Canada Limited
Wilhelmus Petrus Henricus De Boer
Egbert Leonardus Cox
Peter John Collins
Vyvian Anthony Cox
Marinus Carolus Adrianus Maria Peters
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 Canada Limited, Wilhelmus Petrus Henricus De Boer, Egbert Leonardus Cox, Peter John Collins, Vyvian Anthony Cox, Marinus Carolus Adrianus Maria Peters filed Critical Shell Canada Limited
Publication of CA2246504A1 publication Critical patent/CA2246504A1/en
Application granted granted Critical
Publication of CA2246504C publication Critical patent/CA2246504C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

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.
CA002246504A 1996-03-05 1997-03-05 Downhole flow stimulation in a natural gas well Expired - Fee Related CA2246504C (en)

Applications Claiming Priority (3)

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

* 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

Family Cites Families (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
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

Also Published As

Publication number Publication date
NO984079D0 (en) 1998-09-04
DK0883732T3 (en) 2003-08-25
EP0883732A2 (en) 1998-12-16
WO1997033070A2 (en) 1997-09-12
WO1997033070A3 (en) 1997-12-04
EP0883732B1 (en) 2003-07-02
CA2246504C (en) 2005-01-11
NO984079L (en) 1998-09-04
NO315580B1 (en) 2003-09-22

Similar Documents

Publication Publication Date Title
EP1217219A3 (en) Direct drive compressor assembly
CA2651812A1 (en) Sealed esp motor system
PT1478855E (en) A centrifugal compressor
EP1041289A3 (en) Direct drive compressor assembly
NO20054198L (en) Sentrifugalkompressorenhet
ATE400742T1 (en) COMPRESSOR SYSTEM WITH CENTRIFUGAL COMPRESSOR AND ELECTRIC MOTOR
GB8820444D0 (en) Electric motor
EP1122437A3 (en) Scroll compressor
WO2005096714A3 (en) Fan for air conditioner
EP0836008A3 (en) A vacuum pumping device
WO2001082448A3 (en) Permanent magnet rotor cooling system and method
EP1200735A4 (en) Blood pump having a magnetically suspended rotor
GB2376505B (en) Improvements in screw compressors
EP0896158A3 (en) Compressors
EP1217214A3 (en) Compressor and driving motor assembly
CA2246504A1 (en) Downhole flow stimulation in a natural gas well
GB9404436D0 (en) Compressor
DE60006689D1 (en) CENTRIFUGAL PUMP WITH MAGNETIC DRIVE
AU2003212212A1 (en) Electronically commutated internal rotor motor
EP0903500A3 (en) Electrically driven coolant pump
GB0305090D0 (en) Rotating shaft with a feedback sensor
MXPA02011294A (en) Ceiling fan.
AU1156000A (en) Electromagnetically operated motor
CA2092438A1 (en) Integrated centrifugal pump and motor
AU1609197A (en) Compressors

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170306