发明名称 |
SYSTEMS AND METHODS FOR LIMITING TORQUE TRANSMISSION |
摘要 |
<p>A drill string for drilling a subterranean wellbore includes a shaft connectable to a first drill string portion and a housing connectable to a second drill string portion. A torque relief section is disposed between the shaft and housing. The torque relief section includes a slip section operable to slip and release torque buildup when torque applied between the shaft and housing exceeds a threshold torque. The threshold torque of the torque relief section is selected to be within the range of about 110% and 150% of the operating torque and below the peak operating torque for the drill string.</p> |
申请公布号 |
WO2013043153(A1) |
申请公布日期 |
2013.03.28 |
申请号 |
WO2011US52281 |
申请日期 |
2011.09.20 |
申请人 |
HALLIBURTON ENERGY SERVICES INC.;KIRKHOPE, KENNEDY JOHN |
发明人 |
KIRKHOPE, KENNEDY JOHN |
分类号 |
E21B44/04 |
主分类号 |
E21B44/04 |
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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