发明名称 |
DRILLING OUT CASING BITS WITH OTHER CASING BITS |
摘要 |
The drilling of a casing bit and any other equipment in the casing with another casing bit where at least two casing bits of different diameter and having associated casing sections may be assembled to form a drilling assembly for drilling subterranean formations, the at least two casing bits and casing sections are arranged in a telescoping relationship.
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申请公布号 |
CA2734977(A1) |
申请公布日期 |
2010.03.04 |
申请号 |
CA20092734977 |
申请日期 |
2009.08.28 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
MCCLAIN, ERIC E.;THOMAS, JOHN CLAYTON |
分类号 |
E21B10/43;E21B10/567;E21B17/14 |
主分类号 |
E21B10/43 |
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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