Wells – Expansible anchor or casing – Liner hanger
Patent
1990-12-21
1992-12-29
Dang, Hoang C.
Wells
Expansible anchor or casing
Liner hanger
166182, 166217, 166348, 285348, E21B 3304
Patent
active
051743760
ABSTRACT:
An all-metal, well annulus packoff assembly for establishing a high pressure, corrosion resistant metal-to-metal seal between a wellhead housing and a casing hanger, including an annular metallic seal element having a generally upstanding U-shaped cross section that is adapted for non-rotational sequential setting against the hanger and the housing.
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Dang Hoang C.
FMC Corporation
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