发明名称 |
Expandable anchoring mechanism |
摘要 |
A bridging hanger with an expandable anchoring mechanism lands on a casing hanger in a subsea wellhead and actuates to anchor to the casing hanger. The anchoring mechanism includes a tubular main body, and a tubular sealing sleeve. The tubular sealing sleeve is coaxial with and mounted on an exterior diameter portion of the tubular main body. The body is moveable from an upper run-in position to a lower set position relative to the sealing sleeve. The anchoring mechanism also includes a first and second locking ring, both carried by the sealing sleeve. The first locking ring engages a profile within an interior of the casing hanger in response to movement of the main body from the run-in to the set position. The second locking ring locks the tubular main body in the set position in response to movement of the main body from the run-in to the set position. |
申请公布号 |
US8640777(B2) |
申请公布日期 |
2014.02.04 |
申请号 |
US201113109783 |
申请日期 |
2011.05.17 |
申请人 |
KOBATA FRANCISCO KAZUO;PERRUCCI LUCAS ANTONIO;VERDAN DEIVIS ALVES;VETCO GRAY INC. |
发明人 |
KOBATA FRANCISCO KAZUO;PERRUCCI LUCAS ANTONIO;VERDAN DEIVIS ALVES |
分类号 |
E21B19/00;E21B33/035 |
主分类号 |
E21B19/00 |
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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