OIL STORAGE TANDEM OFFLOADING PLATFORM AND METHOD OF HULL TOP STRUCTURE SEPARATION FROM PLATFORM FLOATING BOTTOM MODULE Russian patent published in 2013 - IPC B63B35/44 B63B21/50 B63B22/02 B63B27/34 

FIELD: transport.

SUBSTANCE: invention relates to sea platforms for offshore underground oil deposit exploration and production. Proposed platform floating hull top structure with bottom end, and positive-buoyancy floating bottom module coupled with hull top structure bottom end. Platform comprises multiple sets of mooring guys each including first part coupled with hull top structure and second part connected to bottom module. Said first part comprises the main anchor guy with first end connected to bed anchor and second end coupled with hull top structure. Second part of every anchor guy comprises lateral anchor guy connecting the main anchor guy with bottom module. Sets of anchor guys feature weight sufficient for overcoming positive buoyancy of bottom module for its immersion after detachment of first parts of anchor guys and bottom module from hull top structure. Method for separation of hull top structure from bottom structure comprises the steps of separation of bottom module from hull top structure bottom end and immersion of bottom module under weight of anchor guys.

EFFECT: withstanding ice loads in areas with severe climate.

9 cl, 6 dwg