Patent ID: 8381670

Claim:
A semi-submersible platform body for supporting drilling, storing, treatment, or production of hydrocarbons, comprising: a platform body adapted to float in a body of water, said platform body having a length, a width, and a cross section with a centre point in a first plane, wherein said width is at least 70% of said length, wherein said platform body is defined by a side wall formed by at least one side wall section, wherein said side wall is arranged around a periphery of an open recess, wherein each side wall section comprises a first side and a second side and an upper edge and a lower edge, wherein said lower edge is adapted to be located in said body of water and said upper edge is adapted to be located above said body of water when said platform body floats in said body of water, wherein said first and second sides of said side wall section define at least a first side wall thickness, wherein said first side of said side wall section faces away from said open recess and said second side of said side wall section faces towards said open recess, said open recess having a cross section with a centre point in said first plane, and wherein said centre point of said cross section of said open recess is displaced a distance in said first plane from said centre point of said cross section of said platform body.