Bundled, articulated riser system for FPSO vessel
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United States of America Patent
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Feb 7, 2017
Grant Date -
Nov 5, 2015
app pub date -
Apr 30, 2015
filing date -
Apr 30, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for bundling flexible risers uses a vertically-hanging riser support shaft extending below the turret of a turret-moored FPSO to manage the motions of the risers. The risers may transition to a catenary configuration as they exit a bottom structure at the lower end of the riser support shaft and connect to wellheads or flowlines on the seafloor. Certain embodiments are suitable for use with a disconnectable buoyant turret mooring system while other embodiments may be used with spread-moored FPSOs.
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