发明名称 Metal-to-metal seal for bridging hanger or tieback connection
摘要 A method of completing a well having a casing hanger set in a subsea wellhead housing includes attaching a running tool to a tubular bridging hanger. A metal-to-metal inner seal is attached to a lower exterior portion of the bridging hanger and a metal-to-metal outer seal is located on an upper exterior portion of the bridging hanger. The assembly is lowered into the well and the lower exterior portion of the bridging hanger is inserted into the casing hanger. The inner seal is wedged between the casing hanger and the bridging hanger in response to weight of the running string. The running tool is actuated to set the outer seal between the upper exterior portion of the bridging hanger and the wellhead housing. Then, a tubing hanger is landed and sealed in the interior of the bridging hanger.
申请公布号 US2006191680(A1) 申请公布日期 2006.08.31
申请号 US20060348201 申请日期 2006.02.06
申请人 VETCO GRAY INC. 发明人 NELSON JOHN E.
分类号 E21B43/10 主分类号 E21B43/10
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