GVA 3800

The GVA 3800 is a compact deep water drilling semi-submersible. It has a variable deck load capacity of 5000 mt in operational and survival conditions. As any other GVA unit it has a safe design with optimal strength, stability and intact stability. Low operation and maintenance cost and a large deck area as any other GVA design.

 

 

Operation area                  Moderate environment

Operation water depth      1,500 m (5,000 ft) DP Mode

Drilling depth                     Up to 7,620 m (25,000 ft)
Regulations                       IMO MODO Code 2001, IMO DP Class 3

Classification                     DNV, ABS or Lloyd’s

Accommodation                120 persons

 

 

 

 

 

 MAIN PARTICULARS  

 Length over all:

 112.8 m

 370.1 ft

 Width over all:

 79.4m

 260.5 ft

 Width outside pontoons:

 65.5 m

 215.2 ft

 Length of pontoons:

 81.6 m

 267.7 ft

 Height  of pontoons:

 8.4 m

 27.6 ft

 Height to Main Deck:

 35.5 m

 116.5 ft

 Height of deck box:

 7.5 m

 24.6 ft

 Four columns:

 12.0 x 12.5 m

 39.3 x 41.0 ft

 Transit draught:

 8.1 m

 26.3 ft

 Transit displacement:

 20.600 mt

 22.700  st

 Transit deck & column P.load:

 5,000 mt

 5,512 st

 Operation draught:

 20.0 m

 65.6 ft

 Operation displacement:

 30,000 mt

 33,070 st

 Operation deck & column P.load:

 5,000 mt

 5,512 st

 Survival draught:

 16.0 m

 52.5 ft

 Air gap in survival:

 12 m

 39.4 ft

 MAIN MARINE SYSTEMS/EQUIPMENT                   

 Power generation:

 8 x 3,500 kW               8 x 4,700 HP

 Thruster:

 4 x 4,500 kW               4 x 6,030 HP

 Thruster control:

 DP 3

 Mooring system:

 8 point mooring system

 Main deck cranes:

 2 x 60 mt                    2 x 66 st

 MAIN DRILLING SYSTEMS/EQUIPMENT

 Derrick for up to 124 ft stands:

 680 mt

 750 st

 Top drive:

 680 mt

 750 st

 Drawwork

 680 mt

 750 st

 Riser tensioners, wireline type:

 580 mt

 640 st

 Drilling riser, 75 ft joints

 2,000 kips flange rating

 Mud Pumps:

 3 x 1,200 kW

 3 x 1,600 HP

 BOP Stack:

 15,000 psi, 5 rams

 TANK/STORAGE CAPACITIES

 Fuel oil:

 2,580 m³

 16,225 bbls

 Drill water:

 1,390 m³

 8,742 bbls

 Potable water:

 340 m³

 2,138 bbls

 Mud Storage, col+pont:

 600 m³

 3,773 bbls

 Mud pits:

 600 m³

 3,773 bbls

 Brine:

 630 m³

 3,962 bbls

 Base oil:

 615 m³

 3,868 bbls

 Bulk mud:

 480 m³

 3,019 bbls

 Bulk cement:

 480 m³

 3,019 bbls

Sack storage:

 150 m³

 1,615 sqft