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A SUBSEA WELLHEAD ASSEMBLY, A SUBSEA INSTALLATION USING SAID WELLHEAD ASSEMBLY, AND A METHOD FOR COMPLETING A WELLHEAD ASSEMBLY
A SUBSEA WELLHEAD ASSEMBLY, A SUBSEA INSTALLATION USING SAID WELLHEAD ASSEMBLY, AND A METHOD FOR COMPLETING A WELLHEAD ASSEMBLY
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机译:地下井口组件,使用所述井口组件的地下安装以及完成井口组件的方法
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摘要
A subsea wellhead assembly comprising at least a casing housing and a casing (7) extending down inside the well, and a tubing hanger (9). The tubing hanger (9) comprises first and second valves (19, 21), each valve being a fail safe valve.
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