发明名称 |
Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element |
摘要 |
A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.
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申请公布号 |
US8561728(B2) |
申请公布日期 |
2013.10.22 |
申请号 |
US201213487541 |
申请日期 |
2012.06.04 |
申请人 |
COOLEY CRAIG H.;SEXTON TIMOTHY N.;PETERSON S. BARRETT;LUND JEFFREY;JOHNSON CHRISTOPHER F.;US SYNTHETIC CORPORATION |
发明人 |
COOLEY CRAIG H.;SEXTON TIMOTHY N.;PETERSON S. BARRETT;LUND JEFFREY;JOHNSON CHRISTOPHER F. |
分类号 |
E21B10/43;E21B10/62 |
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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