发明名称 |
COILED TUBING INJECTOR WITH LOAD SENSING TUBING GUIDE |
摘要 |
The invention pertains to methods and apparatus for monitoring loads on an arched tubing guide of a coiled tubing injector caused by tension on coiled tubing. The load is sensed by a load sensor, for example, a load cell placed in a strut that supports the arched tubing guide, or in a load pin or load cell placed within the structure arched tubing guide or the connection of the arched tubing guide to a frame for the coiled tubing injector, at a location where the load is representative of the load placed on an arched tubing guide by tension in the coiled tubing. The load sensor generates a feedback signal. The load is monitored, either by an operator or a controller, and torque applied to a reel around which the tubing is wound is adjusted to avoid, or in response to, excessive loads on the arched tubing guide. |
申请公布号 |
WO2015057864(A3) |
申请公布日期 |
2015.07.16 |
申请号 |
WO2014US60736 |
申请日期 |
2014.10.15 |
申请人 |
NATIONAL OILWELL VARCO, L.P. |
发明人 |
STEFFENHAGEN, TIMOTHY S.;WHITE, WILLIAM B.;MCCULLOCH, DAVID W. |
分类号 |
E21B19/22;E21B17/20;E21B44/04 |
主分类号 |
E21B19/22 |
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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