Retrieval of subsea production and processing equipment
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United States of America Patent
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Mar 28, 2017
Grant Date -
Dec 22, 2016
app pub date -
Aug 31, 2016
filing date -
Aug 24, 2012
priority date (Note) -
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Abstract
A method includes disconnecting subsea equipment containing a first fluid from an installation in a subsea environment, wherein the first fluid is a produced fluid that includes produced hydrocarbons. Furthermore, the method also includes raising the disconnected subsea equipment from the subsea environment and controlling a fluid pressure of the first fluid in the subsea equipment with an accumulator device while raising the subsea equipment from the subsea environment, wherein the accumulator device includes first and second adjustable accumulator chambers and a movable pressure boundary separating the first and second adjustable accumulator chambers.
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