| 发明名称 |
WHIPSTOCK FOR MOUNTING IN A CASING SECTION |
| 摘要 |
A whipstock for mounting in a casing section of a well includes a main body, a sloping face formed on a main body, a lip extended out from the sloping face and a coating material disposed over the main body except at least over the sloping face, and the coating material forming an outer surface.
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| 申请公布号 |
CA2526877(C) |
申请公布日期 |
2009.04.28 |
| 申请号 |
CA19982526877 |
申请日期 |
1998.08.18 |
| 申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
BEGG, STEPHEN M.;GEORGE, GRANT E.E. |
| 分类号 |
E21B7/08;E21B23/02;E21B23/04;E21B23/12;E21B47/09 |
主分类号 |
E21B7/08 |
| 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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