发明名称 |
Gravel packing system |
摘要 |
A gravel packing system in which the gravel screen and attached packer are anchorable in a well bore. A cross-over tool has an indicator device which cooperates with the gravel screen to provide surface indications of the downhole tool positions and the operation of a gravel valve. A setting tool can be used with the cross-over tool to set the packer and is releasable by hydraulic pressure. The setting tool and packer are releasably and co-rotatively coupled permitting right hand rotation while going in the well bore. The cross-over tool has a float valve which permits reverse circulation in low pressure wells. The packer has a release system for permitting retrieval of the packer.
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申请公布号 |
US5332038(A) |
申请公布日期 |
1994.07.26 |
申请号 |
US19920925173 |
申请日期 |
1992.08.06 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
TAPP, WILIAM T.;TRAWEEK, MARVIN B.;MOLLICONE, RICHARD A. |
分类号 |
E21B23/06;E21B23/08;E21B33/129;E21B33/1295;E21B34/14;E21B43/04;(IPC1-7):E21B33/124 |
主分类号 |
E21B23/06 |
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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