Metal casing hanger seal with expansion slots

Details Metal casing hanger seal with expansion slots Metal casing hanger seal with expansion slots

F - Mech Eng,Light,Heat,Weapons

16

J

166/51.3

F16J 15/08 (2006.01) E21B 33/04 (2006.01) F16L 15/04 (2006.01) E21B 33/00 (2006.01)

Patent

CA 1253437

ABSTRACT OF THE DISCLOSURE A casing hanger seal for a subsea well uses a seal ring having inner and outer walls spaced radially apart from each other. An energizing ring is moved from disengaged position to an engaged position between the walls, wedging them apart to form the metal seal. Vertical slots are formed in the walls to facilitate expansion. The slots are located in a gripping section that engages wickers formed on the inner and outer tubular members of the well. Circumferential grooves are located in the sealing areas.

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