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    • 9. 发明授权
    • Well tool with combined actuation of multiple valves
    • 良好的工具,多个阀组合启动
    • US08151888B2
    • 2012-04-10
    • US12410785
    • 2009-03-25
    • Adam D. WrightAdam H. MartinPaul D. Ringgenberg
    • Adam D. WrightAdam H. MartinPaul D. Ringgenberg
    • E21B34/12
    • E21B34/101E21B34/102E21B49/08
    • A well tool with combined actuation of multiple valves. A well tool includes at least two valves and an actuator which actuates each of the valves, one valve being positioned longitudinally between the other valve and the actuator, and the other valve being operable in response to displacement of an operating device by the actuator. Another well tool includes a valve with a closure which displaces when the valve is operated, a volume of a chamber which increases and a volume of another chamber which decreases when the closure displaces, and a pressure differential between the chambers being substantially zero when the closure displaces. Another well tool includes at least two valve closures which are the only displaceable components of the well tool exposed to a first internal flow passage portion when one closure prevents fluid communication between the first and a second internal flow passage portions.
    • 具有多个阀组合启动的良好工具。 井工具包括至少两个阀和致动器,致动器致动每个阀,一个阀纵向定位在另一个阀和致动器之间,另一个阀响应于致动器对操作装置的位移而可操作。 另一个好的工具包括具有封闭件的阀门,当阀门被操作时,该阀门被移位,一个容积增加的腔室和一个在封闭件移位时减小的另一个腔室的体积,并且当闭合件 置换 另一个井工具包括至少两个阀闭合件,当闭合件防止第一和第二内部流动通道部分之间的流体连通时,它们是暴露于第一内部流动通道部分的井具工具的唯一可移动部件。