发明名称 Flow control in a well bore
摘要 A system for installation in a well bore includes a flow control device and a control unit coupled to the flow control device. The flow control device is changeable from a first state to a second state. The first state corresponds to a first mode of fluid communication between an interior of a tubular conduit of a completion string and an annulus between the tubular conduit and a wall of the well bore. The second state corresponds to a second, different mode of fluid communication between the interior of the tubular conduit and the annulus. The control unit is coupled to the flow control device to change the flow control device between the first and second states. The control unit is actuated to change the flow control device in response to pressure in the well bore.
申请公布号 US8074719(B2) 申请公布日期 2011.12.13
申请号 US20100908096 申请日期 2010.10.20
申请人 RICHARDS WILLIAM MARK;HALLIBURTON ENERGY SERVICES, INC. 发明人 RICHARDS WILLIAM MARK
分类号 E21B34/06 主分类号 E21B34/06
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