A monohull offshore drilling vessel (1) comprising: - a hull (2) having a moonpool (5); - a multiple firing line hoist system mounted on the hull at said moonpool, the multiple firing line hoist system comprising: - a mast (11)having a top side and a base connected to the hull of the drilling vessel, wherein the mast has a hollow construction with a first side and an opposed second side, - a first hoisting device; - a second hoisting device; - a suspended riser transfer device, which includes a support frame (64) and a pair of associated rails (65) which extend in longitudinal direction along the moonpool allowing to displace the support frame in longitudinal direction of the moonpool while supporting a riser string of interconnected risers general between a rear moonpool area and a front moonpool area, so as to pass underneath the base of the mast.
OFFSHORE PIPE AND RISER HANDLING DRILLING VESSEL
OFFSHORE BOHRSCHIFF ZUR HANTIERUNG VON AUFSTIEGS- UND ANKERUNGSROHREN
NAVIRE DE FORAGE EN MER
2017-06-14
Patent
Elektronische Ressource
Englisch
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