发明名称 |
Coring Apparatus And Methods To Use The Same |
摘要 |
An apparatus for conveyance via wireline or drillstring in a wellbore extending into a subterranean formation, the apparatus comprising a coring bit assembly, a first motor operatively coupled to the coring bit assembly via a gear box to rotationally drive the coring bit assembly, and a second motor to drive the coring bit assembly into the formation while the coring bit assembly is rotated by the first motor, wherein the coring bit assembly comprises a feature to permit the coring bit assembly to be broken when the coring bit assembly becomes stuck in the formation.
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申请公布号 |
US2012000711(A1) |
申请公布日期 |
2012.01.05 |
申请号 |
US201113230374 |
申请日期 |
2011.09.12 |
申请人 |
BUCHANAN STEVEN E.;REID, JR. LENNOX E.;LAVAURE RACHEL |
发明人 |
BUCHANAN STEVEN E.;REID, JR. LENNOX E.;LAVAURE RACHEL |
分类号 |
E21B25/00 |
主分类号 |
E21B25/00 |
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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