发明名称 |
EXPANDABLE MILL AND METHODS OF USE |
摘要 |
In some embodiments, apparatus useful for cleaning at least part of the interior surface of a generally cylindrically-shaped member disposed in a subterranean well includes a housing and a plurality of retractable mill blades supported on the housing and movable from an initial retracted position to an extended position and thereafter to a final retracted position. |
申请公布号 |
CA2743805(C) |
申请公布日期 |
2014.05.27 |
申请号 |
CA20112743805 |
申请日期 |
2011.06.20 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
KRIEG, GEORGE N.;HEBERT, DAVID |
分类号 |
E21B37/02;E21B37/00 |
主分类号 |
E21B37/02 |
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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