Wellhead sealing assembly

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member

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Details

166 84, 277102, 277125, 277195, 285348, 285351, E21B 3303, F16J 1500, F16J 1518

Patent

active

046452141

ABSTRACT:
A sealing assembly for sealing between a wellhead housing and a casing suspended in the housing including a base ring with an upper surface with inner and outer shoulders and an annular recess between the shoulders, a first energizing ring with a shoulder facing the base ring inner shoulder, a projection to extend into the annular recess and upper lugs with tapered upper surfaces; a second energizing ring surrounding the first ring projection with slots to receive the first ring lugs, a lower surface facing the base ring outer shoulder and upper tapered surfaces; an inner seal ring between the base ring inner shoulder and the first ring shoulder; an outer seal ring between the base ring outer shoulder and the second ring shoulders and means for engaging the tapered surfaces at the first and second rings to energize the seal rings into sealing position.

REFERENCES:
patent: 1725836 (1929-08-01), Solberg
patent: 1780764 (1930-11-01), Noble
patent: 2178699 (1939-11-01), Penick et al.
patent: 2364133 (1944-12-01), De La Roza, Sr.
patent: 2456081 (1948-12-01), Penick
patent: 2471658 (1949-05-01), Shaffer et al.
patent: 3492009 (1970-01-01), Bevesnev et al.
patent: 3726546 (1973-04-01), Brown
patent: 4149731 (1979-04-01), Yoshida et al.
patent: 4349205 (1982-09-01), McGee et al.
patent: 4489916 (1984-12-01), Stevens

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