Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yun Ding0
William Lawrence Soester0
Date of Patent
January 18, 2011
0Patent Application Number
120373410
Date Filed
February 26, 2008
0Patent Primary Examiner
Patent 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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