Subsea well

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 33/038 (2006.01) E21B 43/013 (2006.01)

Patent

CA 2262932

Subsea well arrangement for offshore production of oil or gas, comprising a wellhead (5-8), a christmas tree (10-19) mounted on the wellhead and at least one riser (31-32) for connection with a production vessel at the sea surface. At the top of the christmas tree (10-19) there is provided a swivel device (20) communicating (21, 22) with the christmas tree, and the swivel device is provided with preferably laterally directed connecting members (31A, 32A, 33A) for risers or hoses (31, 32) and for an umbilical or control cable (33).

Cette invention concerne un système de puits sous-marin qui est destiné à la production de gaz ou de pétrole en haute mer. Ce système comprend une tête de puits (5 - 8), un arbre de Noël (10 - 19) monté sur la tête de puits, ainsi qu'une colonne montante (31 - 32) assurant la connexion avec un navire de production se trouvant en surface. Un dispositif de tête d'injection (20) est monté au sommet de l'arbre de Noël (10 - 19), et entre en communication (21, 22) avec ce dernier. Le dispositif de tête de puits comprend des éléments de connexion (31A, 32A, 33A) qui sont de préférence orientés latéralement, et qui sont destinés à des colonnes montantes ou à des tuyaux (31, 32), ainsi qu'à des câbles ombilicaux ou de commande (33).

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