发明名称 |
Means and method for protecting apparatus situated in a borehole from closure of the borehole |
摘要 |
Apparatus situated in a borehole traversing an earth formation is protected from closure of the borehole by being encased in an inflatable device. Surface equipment inflates and maintains the inflatable device at a sufficient pressure so as to prevent the earth formation from closing in and contacting the apparatus.
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申请公布号 |
US4398597(A) |
申请公布日期 |
1983.08.16 |
申请号 |
US19810229697 |
申请日期 |
1981.01.29 |
申请人 |
TEXACO INC. |
发明人 |
HABERMAN, JOHN P. |
分类号 |
E21B36/04;E21B43/24;H05B6/80;(IPC1-7):E21B36/04 |
主分类号 |
E21B36/04 |
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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