发明名称 |
DOWNHOLE SEALING FOR PRODUCTION TUBING |
摘要 |
A method of providing a downhole seal, such as a packer (12), in a drilled bore between inner tubing (11) and outer tubing (16) comprises: providing an intermediate tubing section (18) defining a seal arrangement for engaging with the inner tubing; and radially plastically deforming the intermediate tubing section downhole to form an annular extension (40a, 40b). The extension creates a sealing contact with the outer tubing (16).
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申请公布号 |
CA2603100(C) |
申请公布日期 |
2011.02.15 |
申请号 |
CA19992603100 |
申请日期 |
1999.12.22 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
METCALFE, PAUL DAVID;SIMPSON, NEIL ANDREW ABERCROMBIE |
分类号 |
E21B43/10;E21B29/00;E21B33/128 |
主分类号 |
E21B43/10 |
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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