发明名称 |
PACKER RETRIEVING MILL WITH DEBRIS REMOVAL |
摘要 |
A mill is configured to have large debris passages disposed among a series of radially extending blades. The mill center is adapted to accept a retention nut that supports a tool that secures the downhole tool being milled out, such as a packer. Reverse flow takes cuttings into the large open area between the blades to pass up in an annular space around a support for the retention nut. The passage then opens up to a maximum dimension leaving only the tubular wall needed for structural strength to support the mill and conduct cuttings into a debris removal tool.
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申请公布号 |
CA2761304(A1) |
申请公布日期 |
2010.05.14 |
申请号 |
CA20102761304 |
申请日期 |
2010.05.14 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
BLAIR, STEVEN G. |
分类号 |
E21B31/08;E21B29/00;E21B37/00 |
主分类号 |
E21B31/08 |
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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