发明名称 |
Subsea trees and caps for them |
摘要 |
A cap for a subsea tree having a re-entry hub (1) and for use with a tubing hanger (25) deployed within the tree comprises an outer sleeve (3) for fitment over the hub and an inner sleeve (19) adapted to extend within the hub. The sleeve has communication couplers (27, 37) for cooperation with the tubing hanger. Preferably the communication couplers are located at the extremity of the inner sleeve. The couplers can accommodate dummy plugs or live couplers to suit the mode of application. The inner sleeve (19) supports at least one annular seal (21, 22) which provides a barrier between the inner sleeve and the inner periphery of the hub. The outer sleeve (19) includes releasable engagement fittings (16) for securing the outer sleeve to the hub. The cap is adapted for use as a running tool. |
申请公布号 |
GB2432172(B) |
申请公布日期 |
2008.07.02 |
申请号 |
GB20050022772 |
申请日期 |
2005.11.09 |
申请人 |
AKER KVAERNER SUBSEA LIMITED;AKER SUBSEA LIMITED |
发明人 |
¢YSTEIN MOEGEDAL;CECIL CLAUDE GOONETILLEKE;KNUT MOGEDAL |
分类号 |
E21B33/037;E21B33/035;E21B33/038 |
主分类号 |
E21B33/037 |
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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