Truss semi-submersible offshore floating structure
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United States of America Patent
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Jan 18, 2011
Issued Date -
N/A
app pub date -
Feb 26, 2008
filing date -
Jan 13, 2006
priority date (Note) -
Expired
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Abstract
A semi-submersible structure. The hull includes four columns that are supported by two pontoons. The columns support the topsides and the topsides structural framing serves as horizontal framing between the columns. A truss frame is attached to the columns. The truss frame preferably includes heave plates. The truss frame extends downward below the pontoons a sufficient distance in the water such that it minimizes motions caused by environmental forces. The hull section and the truss space frame are constructed separately and assembled together at the offshore site where the structure is used for drilling and/or production.
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