Riser installation vessel and method of using the same

B - Operations – Transporting – 63 – B

Patent

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Details

B63B 21/50 (2006.01) E21B 17/01 (2006.01) E21B 43/013 (2006.01)

Patent

CA 2502521

The invention relates to a vessel (1) for exploration of hydrocarbons. The vessel comprises one or more risers (13, 14) extending from the vessel to the seabed, a hydrocarbon processing unit (5) connected to the one or more risers and to a storage or transport structure (6) for storing the processed hydrocarbons. The vessel is anchored to the seabed, the vessel comprising a lifting means (22) for lowering risers vertically towards the sea bed and for connecting a riser with a first end to a subsea hydrocarbon structure (7), which riser comprises a connector (18) on a second end, the vessel comprising a connector (16) for attaching to the riser connector and for placing the riser in fluid connection with the processing unit.

La présente invention concerne un vaisseau (1) utilisé pour l'exploration d'hydrocarbures. Le vaisseau comprend au moins une colonne montante (13, 14) qui s'étend du vaisseau jusqu'au plancher océanique, une unité (5) de traitement d'hydrocarbures couplée à la colonne montante et une structure de stockage ou de transport (6) destinée au stockage des hydrocarbures traités. Le vaisseau est ancré sur le plancher océanique et comprend un moyen de levage (22) qui permet de faire descendre verticalement des colonnes montantes en direction du plancher océanique et de coupler une colonne montante à une première extrémité d'une structure sous-marine d'hydrocarbure (7), ladite colonne montante comprenant un élément de connexion (18) prévu sur une deuxième extrémité, ledit vaisseau comportant un élément de connexion (16) destiné à se fixer à l'élément de connexion de la colonne montante et à placer la colonne montante en connexion par le fluide avec l'unité de traitement.

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