发明名称 |
Sensor de deslizamento e método de operar uma chave flutuante pneumática e chave flutuante de apoio integradas |
摘要 |
<p>Method and apparatus to make-up or break-out a threaded tubular connection using an integrated power tong and back-up tong (10). The power tong (20) may be disabled upon sensing a predetermined threshold amount of displacement of at least a portion of a back-up tong (14). The sensed displacement indicates that the back-up tong (14) is slipping, and power tong (20) rotation may be disabled to prevent damage to the pipe string (16) or surrounding equipment. A slippage sensor (40) may be disposed to sense displacement of at least a portion of the back-up tong (14) relative to a supporting frame (12). In one embodiment, the slippage sensor (40) may be operatively coupled to a valve (50) disposed in communication with a fluid line (46) supplying power fluid to the power tong (20). The power tong (20) may be disabled by impairing flow to the power tong (20) upon sensing a predetermined displacement of the back-up tong (14).</p> |
申请公布号 |
BRPI0819740(A2) |
申请公布日期 |
2015.06.16 |
申请号 |
BR2008PI19740 |
申请日期 |
2008.11.07 |
申请人 |
FRANK'S INTERNATIONAL, INC. |
发明人 |
BRIAN DAVID BEGNAUD;MARK STEPHEN SIBILLE |
分类号 |
E21B19/16;B25J13/08 |
主分类号 |
E21B19/16 |
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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