| 摘要 |
A vessel (l) adapted to perform subsea wellbore related operations involving a riser string between the subsea wellbore and the vessel, e.g. drilling and/or wellbore intervention, said vessel comprising a hull (2) having a deck (9). The vessel comprises a riser storage hold (40) present within said hull below said deck, which riser storage hold comprises storage racks adapted to store therein parallel stacks of multiple riser sections and/or pre-assembled riser stands in horizontal orientation. The vessel has an elongated riser transfer opening (45) between said deck and said roof, said riser transfer opening extending in a direction parallel to said storage racks, said riser transfer opening having a length and a width so as to allow for transfer of a single riser section or a single riser stand in horizontal orientation via said riser transfer opening out of and into the riser storage hold, wherein the risers' handling system is suitable to work at the same time with two different lenghts. |
