Drilling Semi-submersible Vess


Principal dimensions
Length of main deck 63.5 m 208.3 ft
Breadth of main deck 64.5 m 211.6 ft
Depth to main deck 35.0 m 114.8 ft
Length overall 90 m 295.3 ft
Operational displacement 30,500 mt
Operational draft 20.5 m 67.3 ft
Survival displacement 27,500 mt
Survival draft 16 m 52.5 ft
Transit displacement 21,000 mt
Transit draft 8.4 m 27.6 ft

Accommodation
130 persons

Capacities
Bulk mud & cement 900 m3 31,783 ft3
Liquid mud (deck) 600 m3 3,774 bbls
Liquid mud (floaters) 350 m3 2,201 bbls
Base oil 340 m3 2,150 bbls
Brine 340 m3 2,150 bbls
Drill water 1,200 m3 7,547 bbls
Potable water 600 m3 3,750 bbls
Fuel oil 780 m3 4,906 bbls
Sack storage 5,000 sacks
Pipe racks 390 m2 4,198 ft2
Vertical riser storage 200 m2 2,153 ft2

Variable load
Variable deck-column load:
Operational 4,400 mt
Survival 3,400 mt
Transit 3,000 mt
Variable load (total):
Operational 6,700 mt
Survival 6,350 mt
Transit 3,800 mt


Drilling equipment
Derrick 180 ft - 2,000 kips
Rotary table 49.5"
Draw works 3,000 kW
Traveling block 2,000 kips
Top drive 2,000 hp
Crown compensator 25 ft
Riser 21' OD
Riser joint length 60 ft
Riser tensioners 10 x 200 kips
Mud pumps 3 x 1,650 kW

Machinery/equipment/fittings
Main generator sets 4 x 2,500 kW
Mooring traction winches 430 t holding
Mooring wires 76 mm, 3,000 m
Mooring anchors 8 x 12 t HHP
Deck cranes 1 x 40 t, 1 x 60 t
Knuckle boom crane 12 t