Metal-to-metal seal for bridging hanger or tieback connection

Wells – Submerged well – Connection or disconnection of submerged members remotely...

Reexamination Certificate

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Details

C166S382000, C166S085300, C166S082100, C166S086100, C166S196000, C277S322000, C277S323000, C277S334000, C285S123120

Reexamination Certificate

active

07861789

ABSTRACT:
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.

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