Turret mooring system with product swivel stack

Details Turret mooring system with product swivel stack Turret mooring system with product swivel stack

1997-11-20

1998-10-20

Avila, Stephen

Buoys, rafts, and aquatic devices

Buoy

For mooring a vessel

114230, B62B 2202

Patent

active

058238379

ABSTRACT:
A storage vessel (10) in a mooring system has a moon pool (14) and a turret (12) rotatively mounted thereon, with the turret anchored to the sea floor. A swivel stack (16) has an inner male core (18) mounted on bearings (80) which are supported on turret (12). Vertically spaced swivels (110) each has an outer female housing (112) mounted on inner male core which define a stacked inner male core (18). The stacked inner male core (18) weathervanes with vessel (10) about turret (12) and outer female housings (112). Inlet product lines (26, 120) in fluid communication with risers (24) are coupled to outer female housings (112); outlet product lines (28) are coupled to the stacked inner male core (18). Outlet products lines (28) extend via the upper end of central bore (79) in inner male core (18) to storage areas of vessel (10). A plurality of manifold platforms (66, 68, 70, 72) are positioned alongside the swivel stack (16) and are secured to the turret (12).

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