发明名称 A method and apparatus for supporting a power tong and backup tong
摘要 A support 10 is provided for supporting both a power tong PT and a backup tong BT during makeup of a threaded connection TC between a lower oilfield tubular LT and an upper oilfield tubular UT. The support 10 includes a plurality of legs 12 and 14 each extending upwardly from the backup tong BT, a support plate 18 affixed to an upper end of the plurality of legs for engagement with the upper oilfield tubular, and a compensation member 32, 44, 60 secured to the support plate 18 for supporting the power tong PT relative to the backup tong BT while allowing vertical movement of the power tong relative to the backup tong during makeup or break out of the threaded connection.
申请公布号 GB2302516(B) 申请公布日期 1998.11.18
申请号 GB19960013099 申请日期 1996.06.21
申请人 * BILCO TOOLS, INC. 发明人 DENNIS JOEL * PENISSON
分类号 E21B19/16;(IPC1-7):E21B19/16 主分类号 E21B19/16
代理机构 代理人
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