发明名称 |
HIGH-CAPACITY SINGLE-TRIP LOCKDOWN BUSHING AND A METHOD TO OPERATE THE SAME |
摘要 |
A high capacity single trip lockdown bushing and a method to operate the same is disclosed. The lockdown bushing includes a tubular body that carries a locking ring and an energizing ring about an upper portion of the tubular body. The energizing ring includes a cam portion interposed between the locking ring and the tubular body so that the cam portion and the locking ring overlap along mating cam surfaces in an unset position. A running tool carries the lockdown bushing to land on a casing hanger. The running tool is actuated to drive the energizing ring downward so that the mating cam surfaces interact to move the locking ring radially outward into engagement with wickers formed in a wellhead. |
申请公布号 |
US2013248196(A1) |
申请公布日期 |
2013.09.26 |
申请号 |
US201213428980 |
申请日期 |
2012.03.23 |
申请人 |
GETTE NICHOLAS PETER;BOEHM CARL F.;BARNHART DANIEL RALPH;VETCO GRAY INC. |
发明人 |
GETTE NICHOLAS PETER;BOEHM CARL F.;BARNHART DANIEL RALPH |
分类号 |
E21B34/04;E21B17/10 |
主分类号 |
E21B34/04 |
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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