SEMI-SUBMERSIBLE VESSEL, METHOD FOR OPERATING A SEMI-SUBMERSIBLE VESSEL AND METHOD FOR MANUFACTURING A SEMI-SUBMERSIBLE VESSEL

摘要

The present invention relates to a semi-submersible vessel comprising: a The present invention relates to a semi-submersible vessel comprising: a flotation body; a support assembly connected to the flotation body and extending upward from the flotation body; a deck structure (26) connected to the support assembly, wherein the deck structure is provided at a distance (36) above the flotation body for providing a clearance between the deck structure and the flotation body for reducing forces of waves hitting the deck(26); a ballast system for controllably varying the draft of the vessel such that at a first draft the flotation body may be provided at least in part above the water-line (9) and at a second draft the support assembly may be provided at least partly below the water-line (9). The vessel is configured to be positioned at the first draft during storm conditions with high waves. The invention further relates to a method of operating said vessel and to a method of manufacturing said vessel.