[특허]Downhole gas-liquid separator for wells

[미국특허] Downhole gas-liquid separator for wells 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/38
출원번호	US-0345224 (1994-11-28)
발명자 / 주소	Weingarten Jean S. (Anchorage AK) Williamson M. Jane (Anchorage AK) Kolpak Miroslav M. (Plano TX) Payne Richard L. (McKinney TX)
출원인 / 주소	Atlantic Richfield Company (Los Angeles CA 02)
인용정보	피인용 횟수 : 66 인용 특허 : 0

초록 ▼

A downhole gas-liquid separator for multiphase fluid producing wells includes a tubular member with a spiral baffle disposed therein and a duct including an inlet disposed adjacent the discharge end of the spiral baffle. Fluid flow into the separator undergoes substantial gas and liquid separation by centrifugal forces imposed on the liquid as it progresses through the spiral flowpath. Gas is drawn off at the discharge end of the spiral baffle and discharged into the wellbore annulus while liquid and a small amount of gas pass on through the separator and the production tubing to the surface. The spiral baffle may be disposed in the wellbore between the distal end of the production tubing string and the point of entry of gas and liquid into the wellbore. The separator may include a retrievable tubular body inserted in a ported nipple interposed in the tubing string.

대표청구항 ▼

A gas-liquid separator device for a well producing both liquid and gas, said well including a tubing string extending within a wellbore and in fluid flow communication with a wellbore space, a packer defining a seal between said tubing string and the wall of said wellbore and delimiting an annular space in said wellbore for conducting gas to the surface, and an opening for communicating gas from said wellbore space to said annular space, said separator device comprising: a generally spiral shaped baffle interposed in a tubular body connected at its first end to said tubing string and in communication with said wellbore space through its second end and with said opening for permitting spiral flow of a gas-liquid mixture upwardly through a generally spiral flowpath defined by said baffle to effect separation of liquid and gas by causing liquid to migrate to the radial extremities of said flowpath and flow upwardly through a fluid discharge end of said baffle and allowing gas to pass generally centrally upwardly along said flowpath; and a duct interposed in said tubular body adjacent to a said fluid discharge end of said baffle for directing the flow of gas through said opening into said annular space, said duct being disposed to receive gas flowing upwardly in a central flowpath coaxial with the longitudinal central axis of said tubular body and for redirecting said gas through said opening into said annular space.

이 특허를 인용한 특허 (66) 인용/피인용 타임라인 분석

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Hall, Jared C.; Tomlinson, James A.; Ellwood, David E., Gas-liquid separator positionable down hole in a well bore.
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Cadle Richard A. (Arlington TX) Payne Richard L. (McKinney TX), Liquid carryover control for spiral gas liquid separator.
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Rodger, George Joel; Cloudt, Jr., Denman L., Method and apparatus for centrifugal separation.
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Stevenson Mark D. ; Brady Jerry L., Method and apparatus for injecting gas into a subterranean formation.
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McKinzie Howard L. ; Berry Michael R., Method and apparatus for minimizing emulsion formation in a pumped oil well.
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Stevenson Mark D., Method and apparatus for producing fluids while injecting gas through the same wellbore.
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Olsen,Geir Inge; Homstvedt,Gunder, Method and arrangement for treatment of fluid.
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Bergren Frank E. ; Weingarten Jean S., Method and system for increasing oil production from an oil well producing a mixture of oil and gas.
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Brady Jerry L. ; Stevenson Mark D. ; Klein John M. ; Cawvey James L. ; Hearn David D., Method and system for increasing oil production from an oil well producing a mixture of oil and gas.
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Brady Jerry L. ; Cawvey James L. ; Stevenson Mark D. ; Klein John M., Method and system for separating and injecting gas and water in a wellbore.
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Brady Jerry L. ; Stevenson Mark D. ; Klein John M. ; Cawvey James L., Method and system for separating and injecting gas in a wellbore.
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Stevenson Mark D. ; Brady Jerry L. ; Klein John M. ; Cawvey James L., Method and system for separating and injecting gas in a wellbore.
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Brady Jerry L. ; Stevenson Mark D. ; Klein John M. ; Cawvey James L., Method and system for separating and injecting water in a wellbore.
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Brady Jerry L. ; Kohring James J. ; North Robert J., Method for generating a flow profile of a wellbore from pulsed neutron logs.
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Brady Jerry L. ; Watson Becky A. ; North Robert J., Method for generating a flow profile of a wellbore using resistivity logs.
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Brady Jerry L. ; Stevenson Mark D. ; Klein John M. ; Cawvey James L., Oil and gas production with downhole separation and compression of gas.
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Brady Jerry L. ; Stevenson Mark D. ; Klein John M. ; Cawvey James L., Oil and gas production with downhole separation and reinjection of gas.
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Brady, Jerry L.; Klein, John M.; Petullo, Steven P.; Blount, Curtis G., Oil and gas production with downhole separation and reinjection of gas.
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[미국특허] Downhole gas-liquid separator for wells 원문보기