Patent ID: 8651038

Claim:
A multi-sectional offshore floating platform, comprising: a truss comprising: a plurality of legs having an upper portion and a lower portion; and a skirt tank coupled to the upper portion of the legs, the skirt tank comprising: a peripheral outer shell; an upper deck disposed at least partially across a cross-sectional portion of the outer shell and coupled to the outer shell, the upper deck having a skirt mating portion; and a lower deck disposed at least partially across a cross-sectional portion of the outer shell and coupled to the outer shell distally from the upper deck and toward the lower portion of the legs; at least one of the decks having an opening therethrough and the skirt tank being buoyant above a water level that is lower than the opening when the skirt tank is horizontal in water at a first orientation, and the opening configured that when the skirt tank is rotated in water to a second orientation the water level is above at least a portion of the opening; and a hull comprising one or more buoyancy tanks and a hull mating portion disposed adjacent the skirt mating portion, the mating portions configured to be at least partially sealingly coupled together.