CA2235341A1 - Producing well artificial lift system control - Google Patents

Producing well artificial lift system control

Info

Publication number
CA2235341A1
CA2235341A1 CA002235341A CA2235341A CA2235341A1 CA 2235341 A1 CA2235341 A1 CA 2235341A1 CA 002235341 A CA002235341 A CA 002235341A CA 2235341 A CA2235341 A CA 2235341A CA 2235341 A1 CA2235341 A1 CA 2235341A1
Authority
CA
Canada
Prior art keywords
wellbore
gas
artificial lift
liquid level
liquid
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
CA002235341A
Other languages
French (fr)
Other versions
CA2235341C (en
Inventor
Michael D. Hershberger
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.)
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24647931&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2235341(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2235341A1 publication Critical patent/CA2235341A1/en
Application granted granted Critical
Publication of CA2235341C publication Critical patent/CA2235341C/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
    • 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
    • E21B43/122—Gas lift
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/008—Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
    • E21B47/009—Monitoring of walking-beam pump systems
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/04—Measuring depth or liquid level
    • E21B47/047—Liquid level

Abstract

A method of producing gas through liquid level detection in an oil or gas well uses various types of artificial lift systems (10) that include subsurface gas lift, beam pumps, progressive cavity pump and submersible pumps. The artificial lift systems (10) are controlled in response to a known liquid level (34) within the wellbore to prevent the well from pumping off and damaging the artificial lift system (10) or from reducing the liquid level (34) in the wellbore to an unnecessarily low level to thereby increase the energy required by the artifical lift system (10) to remove the liquid (32) from the wellbore. The liquid level detection method includes the detection of at least the pressure on a side string tube in the wellbore to determine the level of liquid in the wellbore for automated control of liquid removal from the wellbore to be removed to the surface through a production tube to allow improved gas or oil production, increase artificial lift efficiency and to allow for control of the artificial lift system to prevent damage to the system. Another method measures production from the well in conjuction with automated liquid level control to maximize liquid level in the wellbore without interfering with production. A timing method allows for control of the quantity of gas injected during the gas injection cycle of a subsurface gas lift artificial lift system.
CA002235341A 1995-11-02 1996-11-01 Producing well artificial lift system control Expired - Fee Related CA2235341C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US616495P 1995-11-02 1995-11-02
US60/006,164 1995-11-02
US08/660,052 US5634522A (en) 1996-05-31 1996-05-31 Liquid level detection for artificial lift system control
US08/660,052 1996-05-31
PCT/US1996/017382 WO1997016624A1 (en) 1995-11-02 1996-11-01 Producing well artificial lift system control

Publications (2)

Publication Number Publication Date
CA2235341A1 true CA2235341A1 (en) 1997-05-09
CA2235341C CA2235341C (en) 2005-04-05

Family

ID=24647931

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002235341A Expired - Fee Related CA2235341C (en) 1995-11-02 1996-11-01 Producing well artificial lift system control

Country Status (4)

Country Link
US (4) US5634522A (en)
AU (1) AU719905B2 (en)
CA (1) CA2235341C (en)
WO (1) WO1997016624A1 (en)

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Also Published As

Publication number Publication date
AU719905B2 (en) 2000-05-18
WO1997016624A1 (en) 1997-05-09
US6516879B1 (en) 2003-02-11
US6705397B2 (en) 2004-03-16
AU7527196A (en) 1997-05-22
US5634522A (en) 1997-06-03
CA2235341C (en) 2005-04-05
US20030121656A1 (en) 2003-07-03
US5826659A (en) 1998-10-27

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