C-semi with minimum hydrodynamic forces
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United States of America Patent
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Dec 8, 2015
Grant Date -
Dec 5, 2013
app pub date -
Nov 22, 2011
filing date -
Nov 23, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An offshore floating structure (10) for the drilling and production of oil and gas includes a generally circular toroidal, hollow pontoon (11) of substantially the same radial width throughout a perimeter of the pontoon. The offshore floating structure includes a plurality of columns (12) of substantially a same cross-sectional area, each coupled at a coupling point, on a bottom end thereof to the pontoon at an equidistant point along the perimeter of the pontoon, and adapted to be coupled on a top end to a deck structure. The diameter (23) from a center of the radial width of the pontoon is greater than a distance (21) from a center of one column to a center of an adjacent column.
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