Multi-activity offshore exploration and/or development...

Details Multi-activity offshore exploration and/or development... Multi-activity offshore exploration and/or development...

E - Fixed Constructions

21

B

E21B 7/12 (2006.01) B63B 35/44 (2006.01) E21B 15/02 (2006.01) E21B 19/00 (2006.01)

Patent

CA 2225755

A multi-activity drillship (30) method and apparatus having a single derrick (40) and multiple tubular activity stations within the derrick (40) wherein primary drilling activity may be conducted from the derrick (40) and simultaneously auxiliary drilling activity may be conducted from the same derrick (40) to reduce the length of the primary drilling activiy critical path.

Navire de forage (30) permettant des opérations multiples et possédant une seule tour de forage (40), ainsi que des postes d'opérations multiples tubulaires à l'intérieur de la tour de forage (40), l'opération initiale de forage pouvant être effectuée depuis la tour de forage (40) et l'opération de forage auxiliaire pouvant être effectuée simultanément depuis la même tour de forage (40), afin de limiter la longueur du trajet critique de l'opération initiale de forage.

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