发明名称 |
Retrievable torque-through packer having high strength and reduced cross-sectional area |
摘要 |
A packer for use in subterranean wellbores provides efficient utilization of its cross-sectional area with mechanisms therein for anchoring, sealing, and torquing through the packer. In a preferred embodiment, a retrievable packer has a tubular mandrel, rubbers disposed on the mandrel, upper and lower compression members axially straddling the rubbers, a barrel-type casing slip, upper and lower wedges axially straddling the casing slip, a release mechanism, and a series of threaded load-distributing components which help to prevent collapse of the mandrel.
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申请公布号 |
US5884699(A) |
申请公布日期 |
1999.03.23 |
申请号 |
US19960606706 |
申请日期 |
1996.02.26 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
MULLEN, BRYON D.;ECHOLS, RALPH H.;KILGORE, MARION D. |
分类号 |
E21B33/129;(IPC1-7):E21B23/06 |
主分类号 |
E21B33/129 |
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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