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.


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    Title :

    OFFSHORE DRILLING VESSEL


    Additional title:

    OFFSHOREBOHRSCHIFF
    NAVIRE DE FORAGE EN MER


    Contributors:

    Publication date :

    2017-11-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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