发明名称 DRILLING COMPONENT RETENTION SYSTEM AND METHOD
摘要 The present disclosure is directed to a system for retention of drilling components of a drilling rig that includes a first drilling component (42) with a first retention feature (80), a second drilling component (44) with a second retention feature (84), and a secondary retention device (45). The first drilling component (42) is coupled to the second drilling component (44) and the secondary retention device (45) engages with the first retention feature (80) of the first drilling component (42) and with the second retention feature (84) of the second drilling component (44).
申请公布号 WO2016018630(A3) 申请公布日期 2016.03.31
申请号 WO2015US40639 申请日期 2015.07.15
申请人 TESCO CORPORATION 发明人 GREENING, DOUG CHRISTIAN;BOWLEY, RYAN THOMAS
分类号 E21B17/042 主分类号 E21B17/042
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