Apparatus and method for installation of subsea well...

E - Fixed Constructions – 21 – B

Patent

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E21B 33/035 (2006.01) E21B 23/00 (2006.01) E21B 33/043 (2006.01) E21B 34/04 (2006.01)

Patent

CA 2495524

A method for installing a subsea completion system comprises installing a conductor housing (16) on the sea floor (14), landing a wellhead (20) in the conductor housing, securing a BOP to the wellhead, landing a casing hanger in the wellhead through the BOP, connecting a tubing hanger to a THRT, landing the ubing hanger in the wellhead or the casing hanger through the BOP, installing a wireline plug in the tubing hanger production bore through the THRT, retrieving the THRT, retrieving the BOP, securing an ROSL (106) to the Christmas tree (22), landing the Christmas tree on the wellhead, and retrieving he wireline plug from the tubing hanger production bore using the ROSL.

L~invention porte sur un procédés d~installation de systèmes de complétion de puits sous-marins comportant les étapes suivantes : (a) installation d~un tube guide (16) sur le fond (14) ; (b) descente d~une tête de puits (20) dans le tube guide ; (c) fixation d~un BOP (bloc obturateur) à la tête de puits et descente de ls suspension du tubage ; (d) fixation de la suspension au THRT (outil de commande de la suspension du tubage) ; (e) descente de la suspension du tubage ou du cuvelage sur la tête de puits via le BOP ; (f ) installation d~un obturateur de câble dans le tube de production de la suspension via le THRT ; (f~) récupération du THRT ; (g) récupération du BOP, fixation du ROSL (106) (lubrificateur sous-marin actionné par engin télécommandé) à l~arbre de Noël (22) ; (h) pose de l~arbre de Noël sur la tête de puits ; (i) et récupération de l~obturateur de câble du tube de production au moyen du ROSL .

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