发明名称 |
FILLER RINGS FOR SWELLABLE PACKERS |
摘要 |
A swellable packer with an enhanced sealing ability comprises a tubular body, a swellable element, and a filler ring disposed about the tubular body between the tubular body and the swellable element. The filler ring is formed of a material harder than the swellable element. The filler ring enhances the sealing ability of the swellable packer. Any number of filler rings may be used. The filler ring or rings may be fixed to the tubular body or may be unfixed. |
申请公布号 |
CA2747149(C) |
申请公布日期 |
2013.11.26 |
申请号 |
CA20112747149 |
申请日期 |
2011.07.22 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
LEMBCKE, JEFFREY J.;ZIMMERMAN, PATRICK J.;WARD, DAVID |
分类号 |
E21B33/12 |
主分类号 |
E21B33/12 |
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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