Semi-submersible vessel

Details Semi-submersible vessel Semi-submersible vessel

B - Operations, Transporting

63

B

114/58.2

B63B 35/44 (2006.01)

Patent

CA 1176114

ABSTRACT OF THE DISCLOSURE In order to simplify the construction and to reduce the resistance to flow, and to provide a high inertia in relation to all essential axes, an offshore vessel comprises a pair of parallel under-water bodies, four columns mounted symmetrically thereupon, and a box-like deck structure, interconnecting the upper ends of the columns. This structure will increase the strength of the vessel so only one horizon- tal, transverse stay is required between each pair of columns. Below each column there is a 360°-turnable shrouded propeller, which together may hold the vessel stationary, with a vertical line of symmetry in a desired position, for instance above a bore-hole. The box structure has a completely closed bottom and sideplating, and will, in case of need, retain the vessel floating.

387921

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