发明名称 |
Using pipe shrinkage upon expansion to actuate a downhole tool |
摘要 |
A downhole tool with a mandrel that is expanded downhole is further actuated due to relative longitudinal movement between the mandrel and a member that accommodates radial expansion without undergoing as much shrinkage as the expanded mandrel or any shrinkage at all. In a packer application, the packer can be set in open hole or cased hole and the relative longitudinal movement that results from mandrel expansion leaves a residual longitudinal compressive force on the sealing element and a tensile reaction force on the underlying mandrel.
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申请公布号 |
US2006266515(A1) |
申请公布日期 |
2006.11.30 |
申请号 |
US20050139864 |
申请日期 |
2005.05.27 |
申请人 |
CARMODY MICHAEL A;JIRAL DENNIS G |
发明人 |
CARMODY MICHAEL A.;JIRAL DENNIS G. |
分类号 |
E21B33/12 |
主分类号 |
E21B33/12 |
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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