Motion compensation means for a floating production system

Details Motion compensation means for a floating production system Motion compensation means for a floating production system

B - Operations, Transporting

63

B

114/59.7

B63B 21/50 (2006.01) B63B 22/02 (2006.01) E21B 19/00 (2006.01) E21B 19/14 (2006.01) E21B 19/15 (2006.01) E21B 43/01 (2006.01)

Patent

CA 1227380

ABSTRACT OF THE DISCLOSURE There is disclosed an apparatus for providing passive motion compensation at the ship-riser interface of a rise- moored floating production system or oil storage tanker, with its associated equipment including a riser handling system. Normal production proceeds, while ship motions are isolated from the riser, preventing excessive load transfer or unaccept- able dynamic effects. The main feature of the system is its ship-borne installation, with all moving parts clear of the waterline. The system is totally self-contained, with motion compensation, riser pipe and handling equipment on board. By installing the flotation within the hull of the ship, it moves with the ship, thus avoiding significant inertial and weather- related load The design is flexible. The range of seas can be extended by adjusting the basic parameters: float shape and size, tank depth, liquid S.G., counterweight size, link geometry, bridge length, etc.

447301

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