TUBULAR CATCHER SYSTEM AND METHOD |
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| 申请号 | PCT/US2012062771 | 申请日 | 2012-10-31 | 公开(公告)号 | WO2013066990A3 | 公开(公告)日 | 2014-02-20 |
| 申请人 | TESCO CORP; | 发明人 | O'BLENES JONATHAN BRIAN; | ||||
| 摘要 | Present embodiments are directed to a tubular catcher system configured to detect a falling tubular (30) through a drilling rig (10) and grip the tubular (30) before it drops into the wellbore. A sensor (44) configured to detect the velocity or acceleration of the tubular (30) activates an actuation mechanism (46) when the velocity or acceleration exceeds a specific threshold, indicating a falling tubular (30). The actuation mechanism (46) forces a gripping mechanism (48) into contact with the tubular (30), catching the tubular (30) and sending energy from the tubular (30) to a hydropneumatic shock absorber (90) coupled to the actuation mechanism (46) and/or the gripping mechanism (48). | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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