Patent ID: 6854411

Claim:
A semi-submersible offshore platform ( 1 ) comprising: a substantially ring-shaped lower pontoon ( 2 ); at least three columns ( 4 ) extending upwardly from said lower pontoon ( 2 ), an upper beam structure ( 5 ) connecting upper portions ( 6 ) of the columns ( 4 ) with each other, and at least one operational module, said upper beam structure ( 5 ) forming a system of lateral beams ( 7 ) arranged to allow one or more of said operational modules ( 8 ) to be placed upon or adjacent to the columns ( 4 ), wherein the operational modules are placed next to the lateral beams ( 7 ), either directly on the columns ( 4 ), on brackets ( 10 ) connected to the columns ( 4 ) or on a deck arranged between upper ends of the columns ( 4 ) and said operation modules ( 8 ), the lateral beams ( 7 ) protruding vertically upwards above a bottom plane ( 11 ) of the operation modules ( 8 ).