Patent ID: 6332500
Filing Date: 2001-12-25
Classification: B63B,E21B

Abstract:
A system for the transfer of fluids at sea comprising:a moored production vessel or ship, said ship or production vessel including a mooring apparatus and a connection unit for a production riser;an anchoring device located at the seabed, said anchoring device including a permanent anchor part affixed to the seabed, a swiveling mechanism and at least two passages suitable for transporting fluids;at least one anchoring line attached to said swiveling mechanism for rotating said swiveling mechanism and connecting said anchoring device to said mooring apparatus, said anchoring line comprising at least one buoyant body disposed during anchoring to be normally immersed in the sea, wherein the anchoring line is connected to said swiveling mechanism with a yoke comprising two parallel legs and a cross bar, the outer ends of said legs being pivotably attached on different sides of said swiveling mechanism; andthe production riser connected to said swiveling mechanism, said production riser comprising at least one flexible hose; andjournals for said swiveling mechanism which are adapted to transfer bending forces from said connected production riser and said anchoring line to the permanent anchor part without stressing internal elements of said swiveling mechanism.