发明名称 |
Apparatus to actuate a downhole tool |
摘要 |
The invention provides an apparatus for actuating a downhole tool by utilizing a pressure differential created by fluid flowing through a conduit. The conduit is in communication with a pressure sensing line that is selectively exposable to areas of the conduit having different pressures. By exposing the pressure sensing line to a portion of the conduit having a predetermined pressure therein, the pressure sensing line cause actuation of a hydraulic tool therebelow.
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申请公布号 |
US6550551(B2) |
申请公布日期 |
2003.04.22 |
申请号 |
US20020041901 |
申请日期 |
2002.01.08 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
BRUNNERT DAVID J.;CARTER THURMAN H.;HAUGEN DAVID M.;INGRAM GARY D.;TEALE DAVID W. |
分类号 |
E21B7/06;E21B7/08;E21B23/06;E21B34/06;(IPC1-7):E21B34/10 |
主分类号 |
E21B7/06 |
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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