CA2350453A1 - Method and apparatus for removing water from well-bore of gas wells to permit efficient production of gas - Google Patents

Method and apparatus for removing water from well-bore of gas wells to permit efficient production of gas Download PDF

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Publication number
CA2350453A1
CA2350453A1 CA002350453A CA2350453A CA2350453A1 CA 2350453 A1 CA2350453 A1 CA 2350453A1 CA 002350453 A CA002350453 A CA 002350453A CA 2350453 A CA2350453 A CA 2350453A CA 2350453 A1 CA2350453 A1 CA 2350453A1
Authority
CA
Canada
Prior art keywords
casing
gas
production
exhaust conduit
sealed
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
CA002350453A
Other languages
French (fr)
Other versions
CA2350453C (en
Inventor
Alvin C. Liknes
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.)
Northern Pressure Systems Inc
Original Assignee
Individual
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
Priority claimed from CA002313617A external-priority patent/CA2313617A1/en
Application filed by Individual filed Critical Individual
Priority to CA002350453A priority Critical patent/CA2350453C/en
Publication of CA2350453A1 publication Critical patent/CA2350453A1/en
Application granted granted Critical
Publication of CA2350453C publication Critical patent/CA2350453C/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
    • E21B43/34—Arrangements for separating materials produced by the well
    • E21B43/38—Arrangements for separating materials produced by the well in the well
    • 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
    • E21B43/13—Lifting well fluids specially adapted to dewatering of wells of gas producing reservoirs, e.g. methane producing coal beds

Abstract

Method and apparatus for removing water from a gas well to permit efficient production of gas while protecting formation from introduced pressures. The apparatus comprises a check valve that seals the casing from production zone when hydrostatic pressure of water from production accumulates in casing above production perforations and checkvalue exceeds formation pressure. When the casing is sealed, a compressor pressurizes gas into the casing but not an exhaust conduit, the top of the casing being sealed around the exhaust conduit, permitting communication between the conduit and a suitable destination, such as via liquid separators on into sale pipeline. Accumulated water is caused to flow into the bottom of the exhaust conduit and out at surface to collection. When pressure within the sealed casing to the top end of exhaust conduit is equalized, the checkvalve opens and regular production can resume.
CA002350453A 2000-07-18 2001-06-13 Method and apparatus for removing water from well-bore of gas wells to permit efficient production of gas Expired - Fee Related CA2350453C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002350453A CA2350453C (en) 2000-07-18 2001-06-13 Method and apparatus for removing water from well-bore of gas wells to permit efficient production of gas

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2,313,617 2000-07-18
CA002313617A CA2313617A1 (en) 2000-07-18 2000-07-18 Method and apparatus for de-watering producing gas wells
CA002350453A CA2350453C (en) 2000-07-18 2001-06-13 Method and apparatus for removing water from well-bore of gas wells to permit efficient production of gas

Publications (2)

Publication Number Publication Date
CA2350453A1 true CA2350453A1 (en) 2002-01-18
CA2350453C CA2350453C (en) 2006-05-09

Family

ID=25681935

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002350453A Expired - Fee Related CA2350453C (en) 2000-07-18 2001-06-13 Method and apparatus for removing water from well-bore of gas wells to permit efficient production of gas

Country Status (1)

Country Link
CA (1) CA2350453C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005024289A1 (en) 2003-09-04 2005-03-17 Optimum Production Technologies Inc. Positive pressure gas jacket for a natural gas pipeline
US7753115B2 (en) 2007-08-03 2010-07-13 Pine Tree Gas, Llc Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
US8276673B2 (en) 2008-03-13 2012-10-02 Pine Tree Gas, Llc Gas lift system
CN111577209A (en) * 2020-06-03 2020-08-25 中国石油天然气股份有限公司 Pressurization device for mechanical pumping drainage gas production well mouth and pressurization method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005024289A1 (en) 2003-09-04 2005-03-17 Optimum Production Technologies Inc. Positive pressure gas jacket for a natural gas pipeline
US7753115B2 (en) 2007-08-03 2010-07-13 Pine Tree Gas, Llc Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
US7789157B2 (en) 2007-08-03 2010-09-07 Pine Tree Gas, Llc System and method for controlling liquid removal operations in a gas-producing well
US7789158B2 (en) 2007-08-03 2010-09-07 Pine Tree Gas, Llc Flow control system having a downhole check valve selectively operable from a surface of a well
US7971649B2 (en) 2007-08-03 2011-07-05 Pine Tree Gas, Llc Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
US7971648B2 (en) 2007-08-03 2011-07-05 Pine Tree Gas, Llc Flow control system utilizing an isolation device positioned uphole of a liquid removal device
US8006767B2 (en) 2007-08-03 2011-08-30 Pine Tree Gas, Llc Flow control system having a downhole rotatable valve
US8162065B2 (en) 2007-08-03 2012-04-24 Pine Tree Gas, Llc System and method for controlling liquid removal operations in a gas-producing well
US8302694B2 (en) 2007-08-03 2012-11-06 Pine Tree Gas, Llc Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
US8528648B2 (en) 2007-08-03 2013-09-10 Pine Tree Gas, Llc Flow control system for removing liquid from a well
US8276673B2 (en) 2008-03-13 2012-10-02 Pine Tree Gas, Llc Gas lift system
CN111577209A (en) * 2020-06-03 2020-08-25 中国石油天然气股份有限公司 Pressurization device for mechanical pumping drainage gas production well mouth and pressurization method thereof

Also Published As

Publication number Publication date
CA2350453C (en) 2006-05-09

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Legal Events

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EEER Examination request
MKLA Lapsed

Effective date: 20160613