发明名称 |
Apparatus and method to detect actuation of a flow control device |
摘要 |
An apparatus for use in a wellbore comprises a flow control device having an open position, a closed position, and at least one intermediate position. The apparatus further comprises a chamber and a movable member for actuating the flow control device, where the movable member is movable inside the chamber. The movable member causes a characteristic in the chamber to change in response to movement of the movable member to actuate the flow control device. A sensor detects the change in the characteristic inside the chamber that is indicative of actuation of the flow control device.
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申请公布号 |
US7347275(B2) |
申请公布日期 |
2008.03.25 |
申请号 |
US20050160211 |
申请日期 |
2005.06.14 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
FONTENOT ROBERT J.;ROSS DONALD W.;ARENA MICHELE |
分类号 |
E21B34/16;E21B;E21B34/06;E21B43/00;E21B47/09;G05D7/00 |
主分类号 |
E21B34/16 |
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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