发明名称 |
WELL TOOLS UTILIZING SWELLABLE MATERIALS ACTIVATED ON DEMAND |
摘要 |
A well tool includes a generally tubular mandrel with a flow passage extending longitudinally through the mandrel, and a flow controller which initially prevents a fluid from contacting a swellable material, but which permits the fluid to contact the material in response to manipulation of pressure in the flow passage. Another well tool includes a swellable material, a generally tubular mandrel, and a conduit wrapped circumferentially about the mandrel, the conduit containing a fluid which, upon contact with the swellable material, causes the material to swell. A method of actuating a well tool in a well includes manipulating pressure in a flow passage extending through a tubular string, thereby opening at least one flow control device of the well tool which selectively permits fluid communication between a reservoir of the well tool and a swellable material of the well tool, whereby a fluid in the reservoir contacts the swellable material. |
申请公布号 |
WO2010111076(A3) |
申请公布日期 |
2011.01.13 |
申请号 |
WO2010US27561 |
申请日期 |
2010.03.17 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC.;SOLHAUG, KRISTIAN;SEVRE, ALF, K.;KALMAN, MARK, D. |
发明人 |
SOLHAUG, KRISTIAN;SEVRE, ALF, K.;KALMAN, MARK, D. |
分类号 |
E21B33/12;E21B23/06 |
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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