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公开(公告)号：US08322426B2
公开(公告)日：2012-12-04
申请号：US12768927
申请日：2010-04-28
CPC分类号： E21B23/06 , E21B34/063
摘要： A downhole actuator apparatus that selectively maintains a pressure differential between two pressure regions in a well. The apparatus includes a body defining first and second chambers. A piston is slidably disposed in the body and is selectively moveable between first and second positions. A barrier is disposed in the body to selectively separate the first and second chambers. A fluid is disposed in the first chamber between the barrier and the piston. A control system that is at least partially disposed within the body is operable to generate an output signal responsive to receipt of a predetermined input signal. The output signal is operable to create a failure of the barrier such that at least a portion of the fluid flows from the first chamber to the second chamber and the piston moves from the first position to the second position.
摘要翻译： 一种井下致动器装置，其选择性地保持井中的两个压力区域之间的压力差。 该装置包括限定第一和第二室的主体。 活塞可滑动地设置在主体中并且可选地在第一和第二位置之间移动。 屏障设置在主体中以选择性地分离第一和第二腔室。 流体在第一室中设置在阻挡件和活塞之间。 至少部分地设置在身体内的控制系统可操作以响应于接收到预定输入信号而产生输出信号。 输出信号可操作以产生阻挡层的故障，使得至少一部分流体从第一腔室流到第二腔室，并且活塞从第一位置移动到第二位置。
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公开(公告)号：US20110265987A1
公开(公告)日：2011-11-03
申请号：US12768927
申请日：2010-04-28
IPC分类号： E21B23/10
CPC分类号： E21B23/06 , E21B34/063
摘要： A downhole actuator apparatus that selectively maintains a pressure differential between two pressure regions in a well. The apparatus includes a body defining first and second chambers. A piston is slidably disposed in the body and is selectively moveable between first and second positions. A barrier is disposed in the body to selectively separate the first and second chambers. A fluid is disposed in the first chamber between the barrier and the piston. A control system that is at least partially disposed within the body is operable to generate an output signal responsive to receipt of a predetermined input signal. The output signal is operable to create a failure of the barrier such that at least a portion of the fluid flows from the first chamber to the second chamber and the piston moves from the first position to the second position.
摘要翻译： 一种井下致动器装置，其选择性地保持井中的两个压力区域之间的压力差。 该装置包括限定第一和第二室的主体。 活塞可滑动地设置在主体中并且可选地在第一和第二位置之间移动。 屏障设置在主体中以选择性地分离第一和第二腔室。 流体在第一室中设置在阻挡件和活塞之间。 至少部分地设置在身体内的控制系统可操作以响应于接收到预定输入信号而产生输出信号。 输出信号可操作以产生阻挡层的故障，使得至少一部分流体从第一腔室流到第二腔室，并且活塞从第一位置移动到第二位置。
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