发明名称 |
TORQUE SUB FOR USE WITH TOP DRIVE |
摘要 |
A torque sub for use with a top drive is disclosed. A method of connecting threaded tubular members for use in a wellbore includes operating a top drive. The top drive rotates a first threaded tubular member relative to a second threaded tubular member. The method further includes measuring a torque exerted on the first tubular member by the top drive. The torque is measured using a torque shaft rotationally coupled to the top drive and the first tubular. The torque shaft has a strain gage disposed thereon. The method further includes wirelessly transmitting the measured torque from the torque shaft to a stationary interface; measuring rotation of the first tubular member; compensating the rotation measurement by subtracting a deflection of the top drive and/or the first tubular member; determining acceptability of the threaded connection; and stopping rotation of the first threaded member when the threaded connection is complete or if the threaded connection is unacceptable. |
申请公布号 |
US2012031628(A1) |
申请公布日期 |
2012.02.09 |
申请号 |
US201113274424 |
申请日期 |
2011.10.17 |
申请人 |
JAHN MICHAEL;PIETRAS BERND-GEORG;HEIDECKE KARSTEN |
发明人 |
JAHN MICHAEL;PIETRAS BERND-GEORG;HEIDECKE KARSTEN |
分类号 |
E21B19/16 |
主分类号 |
E21B19/16 |
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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