Wellhead seal with pressure energizing from below
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United States of America Patent
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Jan 26, 2021
Grant Date -
Mar 15, 2018
app pub date -
Sep 14, 2016
filing date -
Sep 14, 2016
priority date (Note) -
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Abstract
An annular seal for sealing an interface between a wellhead housing and a casing hanger. The annular seal includes a central body portion and a first pair of seal legs extending in a first direction from the central body portion. Each of the first pair of seal legs sealingly engages one of the wellhead housing or the casing hanger, and are further energized by bore pressure. The annular seal also includes a second pair of seal legs extending in a second direction from the central body portion. Each of the second pair of seal legs sealingly engages one of the wellhead housing or the casing hanger, and is further energized by annulus pressure.
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