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公开(公告)号:US09464507B2
公开(公告)日:2016-10-11
申请号:US14052554
申请日:2013-10-11
申请人: WELLDYNAMICS, INC.
IPC分类号: E21B34/10 , E21B34/14 , E21B33/14 , E21B43/14 , E21B43/16 , E21B43/24 , E21B43/25 , E21B34/00
CPC分类号: E21B34/14 , E21B33/14 , E21B34/10 , E21B34/102 , E21B43/14 , E21B43/162 , E21B43/2406 , E21B43/25 , E21B2034/007
摘要: A valve for use in a tubular string in a subterranean well includes a sleeve having first and second opposite ends, the sleeve being displaceable between open and closed positions to thereby selectively permit and prevent flow through a sidewall of a housing assembly, and a first and second pistons at the respective first and second ends of the sleeve. Pressure differentials applied to the first and second pistons are operative to displace the sleeve between its open and closed positions.
摘要翻译: 用于地下井中的管状管柱的阀包括具有第一和第二相对端的套筒,所述套筒可在打开和关闭位置之间移动,从而选择性地允许和防止流过壳体组件的侧壁,以及第一和第 在套筒的相应的第一和第二端处的第二活塞。 施加到第一和第二活塞上的压差可操作以在其打开位置和闭合位置之间移动套筒。
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公开(公告)号:US20140090851A1
公开(公告)日:2014-04-03
申请号:US14052554
申请日:2013-10-11
申请人: Welldynamics, Inc.
CPC分类号: E21B34/14 , E21B33/14 , E21B34/10 , E21B34/102 , E21B43/14 , E21B43/162 , E21B43/2406 , E21B43/25 , E21B2034/007
摘要: Casing valves for selective well stimulation and control. A well system includes at least one valve interconnected in a casing string operable via at least one line external to the casing string to selectively control fluid flow between an exterior and interior of the casing string, and the casing string, valve and line being cemented in a wellbore. A method of selectively stimulating a subterranean formation includes: positioning a casing string in a wellbore, the casing string including spaced apart valves operable via a line to selectively control fluid flow between an interior and exterior of the casing string; and for each of multiple intervals of the formation in sequence, stimulating the interval by opening a corresponding one of the valves, closing the remainder of the valves, and flowing a stimulation fluid from the casing string into the interval.
摘要翻译: 用于选择性井刺激和控制的套管阀。 井系统包括至少一个在套管柱中相互连接的阀,其可通过套管柱外部的至少一个管线操作,以选择性地控制套管柱的外部和内部之间的流体流动,并且套管柱,阀和管线被粘合在 井筒 选择性地刺激地下地层的方法包括:将套管柱定位在井眼中,所述套管柱包括可经由管线操作的间隔开的阀,以选择性地控制套管柱的内部和外部之间的流体流动; 并且对于顺序的形成的多个间隔中的每一个,通过打开相应的一个阀来刺激间隔,闭合其余阀,并将刺激流体从套管柱流入间隔。
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