发明名称 |
Drill Bit with Adjustable Side Force |
摘要 |
A drill bit according to one embodiment includes a center member configured to rotate at a first speed and an outer member disposed outside the center member, wherein the outer member is configured to rotate at a second speed. The drill bit also includes a first cutter disposed on the center member and a second cutter disposed on the outer member, wherein the first speed and second speeds are configured to control a resultant side force of the drill bit.
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申请公布号 |
US2012055713(A1) |
申请公布日期 |
2012.03.08 |
申请号 |
US201113222170 |
申请日期 |
2011.08.31 |
申请人 |
HERBERG WOLFGANG E.;MEISTER MATTHIAS;BAKER HUGHES INCORPORATED |
发明人 |
HERBERG WOLFGANG E.;MEISTER MATTHIAS |
分类号 |
E21B7/00;B23P15/28;B23P17/00;E21B10/00 |
主分类号 |
E21B7/00 |
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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