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Metal-to-metal annulus packoff for a subsea wellhead system
Metal-to-metal annulus packoff for a subsea wellhead system
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机译:海底井口系统的金属对金属环空封隔
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摘要
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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