Patent ID: 6968899

Claim:
Drilling-workover vessel ( 1 ) comprising a rotatable turret ( 14 ) and a supporting structure ( 3 ) over or on the turret for supporting a swivel ( 5 ) having an inner and outer ring ( 21 , 21 â€²; 22 , 22 â€²) which can rotate with respect to each other and which define at least one fluid distribution path from a geostationary fluid riser ( 19 ) connected via piping to one ring ( 22 , 22 â€²), to a product outflow pipe ( 18 ) connected to the other ring ( 21 , 21 â€²), characterised in that a rig ( 2 ) is mounted over the turret area, a substantially rigid pipe extending from the rig, through a moonpool of the turret towards the sea bed, the rigid pipe being in line with the swivel.