Apparatus for transferring hydrocarbons from a subsea source...

B - Operations – Transporting – 63 – B

Patent

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Details

B63B 22/26 (2006.01) B63B 21/50 (2006.01) B63B 22/02 (2006.01)

Patent

CA 2433884

An apparatus for transferring hydrocarbons from a subsea source to a vessel (1), wherein the risers (2) are suspended from a rotating body (8) and communicate with a swivel unit (3) comprising a number of swivel rings (5) having outlets (6) connected to a pipe system (7) on the vessel. The apparatus comprises a block (25) arranged between the risers (2) and the swivel unit (3) and provided with interior ducts (28) for connection of the risers (2) with respective swivel rings (5), and means (29) for selective closing of the ducts (28) are arranged between the risers (2) and the swivel unit (3). These means are integrated in the block (25). In an advantageous embodiment the block (25) is also provided with means (33) for selective interconnection of two or more of the ducts (28) in the block.

L'invention concerne un appareil permettant de transférer des hydrocarbures provenant d'une source sous-marine dans une cuve (1), les tubes ascenseurs (2) étant suspendus à un corps rotatif (8) et communiquant avec une unité de tête d'injection (3) comprenant un certain nombre d'anneaux d'injection (5) présentant des sorties (6) couplées à un système de conduits (7) situé sur la cuve. L'appareil comprend un bloc (25) disposé entre les tubes ascenseurs (2) et l'unité de tête d'injection (3), et est doté de conduits intérieurs (28), destinés à accoupler les tubes ascenseurs (2) avec leur anneau d'injection correspondant (5), et des moyens (29) permettant de fermer les conduits (28) de manière sélective, positionnés entre les tubes ascenseurs (2) et l'unité de tête d'injection (3). Ces moyens sont intégrés au bloc (25). Dans un mode de réalisation avantageux, le bloc (25) est également doté de moyens (33) permettant une interconnexion sélective de deux ou de plusieurs conduits (28) du bloc.

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