发明名称 |
DRILLING ASSEMBLIES INCLUDING ONE OF A COUNTER ROTATING DRILL BIT AND A COUNTER ROTATING REAMER, METHODS OF DRILLING, AND METHODS OF FORMING DRILLING ASSEMBLIES |
摘要 |
Drilling assemblies include a drill bit and a reamer apparatus in which the drill bit is configured to rotate in rotational direction about a longitudinal axis of a drill string and the reamer apparatus is configured to rotate in an opposite rotational direction about the longitudinal axis. Methods of forming a drilling assembly include configuring a drill bit to drill a subterranean formation when rotating in a counter-clockwise direction and configuring a reamer apparatus to ream a wellbore within the subterranean formation when rotating in a clockwise direction. Methods of drilling wellbores in subterranean formations include rotating a drill bit in a first rotational direction about a longitudinal axis of a drill string to drill a wellbore and rotating a reamer apparatus in an opposite rotational direction about the longitudinal axis of the drill string to ream the wellbore. |
申请公布号 |
EP2379836(A4) |
申请公布日期 |
2014.01.08 |
申请号 |
EP20100733835 |
申请日期 |
2010.01.21 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
RADFORD, STEVEN;MEINERS, MATTHEW, J. |
分类号 |
E21B7/00;E21B10/26 |
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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