Tree cap wedge seal system and method to operate the same
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United States of America Patent
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Jun 16, 2015
Grant Date -
Nov 21, 2013
app pub date -
May 18, 2012
filing date -
May 18, 2012
priority date (Note) -
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Abstract
A tree cap has a wedge type annular metal seal for capping and sealing a subsea tree and associated methods to energize the same. The tree cap includes a cam element having a lower end with a conical profile adapted to be disposed within a respective bore of the subsea tree. The cam element moves along an axis of the bore. The annular metal seal is disposed on an outer diameter of the cam element so that the cam element may compress the annular metal seal against an actuation member to seal the bore of the subsea tree. The tree cap includes a housing adapted to be disposed on and secure to the subsea tree. The housing carries the cam element and exerts an axial force on the cam element to deform the annular metal seal into sealing engagement between the tree cap and the subsea tree.
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