Disconnectable mooring system and method for disconnecting or reconnecting it

摘要

DISCONNECTABLE MOORING SYSTEM AND METHOD FOR DISCONNECT ING OR RECONNECTING IT Abstract A disconnectable mooring system for a vessel (1) is presented, comprising a moonpool in the vessel, a turret structure (5) mounted for a rotation in said moonpool (2) and a buoy mem ber (7) having a plurality of passages (8) each adapted to receive a riser (9). The turret structure (5) has a lower end comprising a buoy receptacle (6) for detachably receiving the buoy member (7), wherein the mooring system (1) further comprises a plurality of mooring lines (10) for transmitting mooring forces and each have a lower end and an upper end connected to the seabed (11) and the buoy member (7), respectively. The mooring lines (10) each comprise a first sec tion (12) which in a disconnectable manner is connected to the turret structure (5) and a second section (13) connected to the first section (12) at a coupling point (14) and connected to the buoy member (7). The length of the second section (13) between said coupling point (14) and its con nection to the buoy member (7) is chosen such that when the buoy member (7) is received in the buoy receptacle (6) with the first section (12) connected to the turret structure (5) and in a state for transmitting mooring forces, said second section (13) is in a slack state not loaded by said mooring forces. Also methods for disconnecting and reconnecting such a mooring system (1) are presented. tH 44=0 .ei