초록 ▼

A riser buoy (36) supports a plurality of risers (19) and is releasably docked within a generally cylindrical turret (20) of a floating storage vessel (10) at a location above the sea level (12) to provide dry access to quick disconnect/connect mating couplings (32, 40) on the turret (20) and riser

A riser buoy (36) supports a plurality of risers (19) and is releasably docked within a generally cylindrical turret (20) of a floating storage vessel (10) at a location above the sea level (12) to provide dry access to quick disconnect/connect mating couplings (32, 40) on the turret (20) and riser buoy (36). A weight (58) connected by anchor chain (44) to riser buoy (36) is connected at its upper end to a retrieval line (60) which is controlled by a winch (62). Riser buoy (36) upon disconnection from vessel (10) is positioned at a predetermined submerged water depth below tanker traffic and high wave loads. Riser buoy (36) is docked within turret (20) independently of positioning means such as anchor chains (17) between the sea bed and the turret, or a thrusting positioning system including thrusters (16) of the vessel.

대표청구항 ▼

[ What is claimed is:] [1.] A method for connecting and disconnecting multiple flexible risers extending to the sea bed to a floating vessel having a turret mounted within a vertical opening of the vessel comprising the steps of:supporting upper ends of said multiple flexible risers with a riser buo

[ What is claimed is:] [1.] A method for connecting and disconnecting multiple flexible risers extending to the sea bed to a floating vessel having a turret mounted within a vertical opening of the vessel comprising the steps of:supporting upper ends of said multiple flexible risers with a riser buoy;removably connecting said riser buoy to the turret at a predetermined position within the turret above sea level;positioning said vessel in the sea with respect to positions of said multiple flexible risers independently of said riser buoy;removably connecting said multiple flexible risers on said riser buoy to product conduits on said vessel for the transport of product to a desired storage area;disconnecting said riser buoy and said multiple flexible risers supported thereon from said vessel for movement of said riser buoy and risers to a predetermined submerged depth within the sea,connecting a weight to said riser buoy with a predetermined length of buoy anchor line;lowering said weight to the sea bottom such that a predetermined submerged depth of said riser buoy is determined by the length of said buoy anchor line, andraising said buoy anchor line and weight into a mating position of said weight to said riser buoy when said riser buoy is connected to and docked within said turret.