发明名称 METHOD AND APPARATUS FOR RESTRAINING TUBULAR MEMBERS DURING WELL SERVICING
摘要 A method for restraining tubular members during well servicing. A first step involves monitoring a velocity of tubular members as they are withdrawn from a well. A second step involves activating a tubing restrainer when the velocity of the tubular members exceeds a predetermined threshold.
申请公布号 US2008017371(A1) 申请公布日期 2008.01.24
申请号 US20060548675 申请日期 2006.10.11
申请人 1128971 ALBERTA LTD. 发明人 KHEHRA MEHTAB S.;SLAGER IRVIN M.
分类号 E21B47/00 主分类号 E21B47/00
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