发明名称 |
GRAVEL PACKING SYSTEM |
摘要 |
2120484 9403704 PCTABS00030 A gravel packing system in which the gravel screen (SCR) and attached (PKR) are anchorable in a well bore. A cross-over tool (XOV) 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 (GRV). A setting tool (SET) can be used with the cross-over tool (XOV) to set the packer (PKR) 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 (500) 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 |
CA2120484(A1) |
申请公布日期 |
1994.02.17 |
申请号 |
CA19932120484 |
申请日期 |
1993.07.29 |
申请人 |
BAKER HUGHES INC |
发明人 |
TAPP WILLIAM T;TRAWEEK MARVIN B;MOLLICONE RICHARD A |
分类号 |
E21B23/06;E21B23/08;E21B33/129;E21B33/1295;E21B34/14;E21B43/04;(IPC1-7):E21B43/04;E21B34/06;E21B34/10 |
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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