Patent ID: 9688360
Date: 2017-06-27
CPC Classifications: B63B

Claim:
1. A floating petroleum production support supporting or suitable for supporting bottom-to-surface connection pipes between a plurality of undersea pipes resting on the seabed and said floating support on the water surface, said floating support including a turret having a cavity immersed at least in part within a structure offset to a front of the floating support or incorporated in or under a hull of the floating support, said turret comprising a cylindrical internal structure, within said cavity, said cylindrical internal structure comprising a tubular side wall surmounted at a top end of the cylindrical internal structure by a top platform coming substantially to the level of a deck of the floating support, said tubular side wall being closed at least in part at a bottom end by a bottom wall, said cylindrical internal structure passing a plurality of flexible first pipes connected to said top platform and extending under said bottom wall to the undersea pipes resting on the sea bottom or to second pipes which are connected to the undersea pipes resting on the sea bottom, said cylindrical internal structure being mounted to rotate relative to said cavity and said hull via rotary guide elements in such a manner as to allow said floating support to rotate about a substantially vertical axis ZZ′ of the cavity of said turret without causing a portion of said turret to rotate relative to the vertical axis ZZ′, wherein said cylindrical internal structure comprises a plurality of rigid guide pipes containing and guiding said flexible first pipes, said guide pipes passing through said bottom wall and passing non-vertically inside said cylindrical internal structure of the turret between: firstly said bottom wall at first locations (C secondly a circular internal platform secured to said cylindrical internal structure above said bottom wall and above the level of the water surface, top ends of said guide pipes being fastened to said circular internal platform at second locations (C