Well pipe hanger with metal sealing annulus valve

Details Well pipe hanger with metal sealing annulus valve Well pipe hanger with metal sealing annulus valve

1990-08-10

1991-09-03

Kisliuk, Bruce M.

Wells

Above ground apparatus

Inner member anchor or seal with valve

166206, 166332, 2851332, 285141, E21B 3304

Patent

active

050444328

ABSTRACT:
A well pipe hanger with a metal sealing annulus valve comprising an axially positionable annular metal seal element with a pair of radially spaced annular sealing surfaces that cooperate with annular metallic sealing surfaces on adjacent well elements to establish a metal-to-metal seal between said elements.

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