METHOD AND APPARATUS FOR FACILITATING HANG OFF OF MULTIPLE TOP TENSION RISER OR UMBILICALS FROM A COMPENSATED TENSIONING DECK
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United States of America Patent
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N/A
Issued Date -
Aug 9, 2012
app pub date -
Feb 7, 2011
filing date -
Feb 7, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The disclosure provides a deck tensioning system, supporting multiple risers, that is coupled to an offshore platform and compensated for heave and horizontal movement. Such a tensioning system provides simplified access to the production trees on the risers. The tensioning system provides tensioning for a tensioning deck to which the multiple risers are coupled, while reducing the tensioning cylinders for individual risers. The deck tensioning system further provides a simplified tension flex connector (“TFC”) with an intermediate movable member for each riser. The TFC assists in absorbing and/or adjusting for forces that may cause the tensioning deck to pitch and roll from the interactions between the multiple risers coupled to the tensioning deck as a unitary structure. If a fire or other event causes damage to the tension flex connector, the tension flex connector is designed to maintain a supporting connection with the riser without the intermediate movable member.
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