发明名称 |
PACKOFF FOR LINER DEPLOYMENT ASSEMBLY |
摘要 |
A packoff for hanging a liner string from a tubular string cemented in a wellbore includes: a tubular body having an outer groove and an inner groove; an inner seal assembly disposed in the inner groove; an outer seal assembly disposed in the outer groove; a cap connected to an upper end of the body for retaining the seal assemblies; a plurality dogs disposed in respective openings formed through a wall of the body; and a lock sleeve. The lock sleeve is: disposed in the body, longitudinally movable relative to the body, and has a cam profile formed in an outer surface thereof for extending the dogs. |
申请公布号 |
CA2852201(A1) |
申请公布日期 |
2014.11.28 |
申请号 |
CA20142852201 |
申请日期 |
2014.05.20 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
DEVARAJAN, KANNAN;PERVEZ, MUHAMMAD SALEEM;TAKOTUE, ALEXIS;MOHAMMED, MUJEER AHMED;GIVENS, GEORGE |
分类号 |
E21B33/04 |
主分类号 |
E21B33/04 |
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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