发明名称 |
Method and apparatus for preventing casing damage due to formation compaction |
摘要 |
A method and apparatus for preventing casing damage due to high axial loading in a well as a result of compaction of the surrounding earth formations. The method consists of providing specially sized and located grooves on both the inside and outside diameters of a section of well casing. The grooves are designed and spacers may be used in some grooves to ensure symmetrical deformation of the casing when subjected to a compressive loading.
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申请公布号 |
US5275240(A) |
申请公布日期 |
1994.01.04 |
申请号 |
US19920901299 |
申请日期 |
1992.06.19 |
申请人 |
SHELL OIL COMPANY |
发明人 |
PETERSON, JAMES L.;GONZALEZ, ROMULO |
分类号 |
E21B17/00;F16L9/02;(IPC1-7):E21B17/00 |
主分类号 |
E21B17/00 |
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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