Riser tensioner system
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United States of America Patent
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Nov 12, 2013
Grant Date -
Oct 4, 2012
app pub date -
Apr 4, 2012
filing date -
Apr 4, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A riser tensioner system maintains a tensile force in a riser having an axis and extending from a subsea wellhead assembly through an opening in a floating platform deck. The tensioner includes a plurality of tensioner legs having lower ends mounted to the deck, and upper ends having slots formed therein to receive leg attachment plates having an opening therein through which a tubular support ring passes. A plurality of cylinders extend between the tubular support ring and a tensioner ring and couple to the support ring with cylinder attachment plates through which the tubular support ring passes. An upper end of each cylinder pivots about the mounting point, and a lower end of each cylinder adjustably mounts to the tensioner ring.
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