Offshore vessel mooring and riser inboarding system

B - Operations – Transporting – 63 – B

Patent

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Details

B63B 21/50 (2006.01) B63B 22/02 (2006.01)

Patent

CA 2623963

There is disclosed an offshore vessel mooring and riser inboarding system (12) for a vessel (10) such as an FPSO or FSO. In one embodiment, the system comprises a first mooring element (16) adapted to be located in an offshore environment (18); a riser (20) adapted to be coupled to the first mooring element; a connector assembly (22) 11 adapted to be mounted on the vessel, the connector assembly comprising a second mooring element (28); and a transfer line (32) adapted to be coupled to the riser; wherein the first and second mooring elements are adapted to be connected to facilitate coupling of the riser and the transfer line; and wherein the connector assembly is adapted to permit relative rotation between the vessel and the first mooring element about three mutually perpendicular. axes of rotation. This facilitates weathervaning of the vessel relative to the first mooring element, as well as pitch, roll, heave and surge, under applied wind, wave and/or tidal forces.

La présente invention concerne un ancrage de navire de haute mer et un système de chargement de tube goulotte (12) pour un navire (10) tel qu~une unité flottante de production, stockage et déchargement en mer. Dans un mode de réalisation, le système comprend un premier élément d~ancrage (16) adapté pour se situer dans un environnement de haute mer (18) ; un tube goulotte (20) adapté pour être couplé au premier élément d'ancrage ; un ensemble de connecteurs (22) 11 adapté pour être monté sur le navire, l'ensemble de connecteurs comprenant un second élément d'ancrage (28) ; et une ligne de transfert (32) adaptée pour être couplée au tube goulotte ; les premiers et seconds éléments d'ancrage sont adaptés pour être raccordés et faciliter l'accouplement du tube goulotte et de la ligne de transfert ; et l'ensemble de connecteurs est adapté pour permettre une rotation relative entre le navire et le premier élément d'ancrage autour de trois axes de rotation perpendiculaires entre eux. Ceci facilite l'orientation du navire par rapport au premier élément d'ancrage, de même qu~au tangage, au roulis, au pilonnement et au cavalement, dans des conditions de forces du vent, des vagues et/ou tidales.

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