Metal-to-metal annulus packoff for a subsea wellhead system
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United States of America Patent
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Dec 29, 1992
Grant Date -
N/A
app pub date -
Dec 21, 1990
filing date -
Dec 21, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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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