A vessel (1) adapted to perform subsea wellbore related operations involving a riser string. The vessel comprises a hull (2), a riser storage (40) adapted to store therein multiple risers sections (60, 61) and/or pre-assembled riser stands (62), a moonpool (5), and a tower (10) arranged at said moonpool. A riser handling capacity hoisting device (26, 28, 29, 29a; 26, 160) is provided having a riser hanger device (26) and adapted to raise and lower relative to said tower a riser string that is suspended from said riser hanger device in a firing line (20).
SUBSEA WELLBORE OPERATIONS VESSEL
SCHIFF FÜR UNTERWASSERBOHRLOCHOPERATIONEN
NAVIRE D'OPÉRATIONS DE PUITS DE FORAGE SOUS-MARIN
2018-10-03
Patent
Elektronische Ressource
Englisch