发明名称 Safety interlock for control lines
摘要 A protection tool is provided to protect a control line in a safe area while one or more slips of a spider are being closed. In another embodiment, a safety interlock system is provided to prevent the closing of the slips before the control line is pulled away from the tubular string. In yet another embodiment, a safety interlock system includes a safety interlock trigger adapted to be actuated by a protection tool. The safety interlock trigger is adapted to detect the physical presence of the protection tool, and thereafter send a signal to the interlock system to enable an operator or a control mechanism to safely close the slips.
申请公布号 US7717184(B2) 申请公布日期 2010.05.18
申请号 US20060565461 申请日期 2006.11.30
申请人 WEATHERFORD/LAMB, INC. 发明人 VOLD GISLE;ABRAHAMSEN EGIL;VESTERSJO SVEIN EGIL;BAUSTAD TERJE;STOKKELAND KAJ;HAUGEN DAVID M.
分类号 E21B19/12 主分类号 E21B19/12
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