发明名称 |
Water sensitive adaptive inflow control using couette flow to actuate a valve |
摘要 |
An apparatus for controlling fluid flow into a wellbore tubular includes a flow control member that selectively aligns a port with an opening in communication with a flow bore of the well bore tubular. The flow control member may have an open position wherein the port is aligned with the opening and a closed position wherein the port is misaligned with the opening. The flow control member moves between the open position and closed position in response to a change in drag force applied by a flowing fluid. A biasing element urges the flow control member to the open or the closed position. The apparatus may include a housing receiving the flow control member. The flow control member and the housing may define a flow space that generates a Couette flow that causes the drag force. The flow space may include a hydrophilic and/or water swellable material.
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申请公布号 |
US7918275(B2) |
申请公布日期 |
2011.04.05 |
申请号 |
US20080274078 |
申请日期 |
2008.11.19 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
CLEM NICHOLAS J. |
分类号 |
E21B47/00;E21B34/00 |
主分类号 |
E21B47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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