发明名称 |
Stress rings for inflatable packers |
摘要 |
An inflatable packer for use in a well includes a tubular mandrel, an inner elastomer sleeve on the mandrel, armor surrounding the inner sleeve, and an outer elastomer sleeve member that covers at least a portion of the armor. Stress rings are mounted on end portions of the armor are made from a metal plate which has been highly cold-worked in both its longitudinal and transverse directions to provide optimum strength characteristics against stresses imposed thereon when the packer is inflated.
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申请公布号 |
US5398755(A) |
申请公布日期 |
1995.03.21 |
申请号 |
US19930127649 |
申请日期 |
1993.09.28 |
申请人 |
DOWELL SCHLUMBERGER INCORPORATED |
发明人 |
ESLINGER, DAVID M.;SOREM, ROBERT M. |
分类号 |
E21B33/127;(IPC1-7):E21B33/127 |
主分类号 |
E21B33/127 |
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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