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Master of the Oceans
GVA 4500 HWI
GVA
Semi-Submersible Drilling Unit
GVA 4500 HWI – SEMI-SUBMERSIBLE DRILLING UNIT
Operation area
Norwegian Continental Shelf
Operation water depth
500 meter
Drilling depth
7000 meter
Regulations
NMD & PSA
Classification
DNV–1A1 Column Stabilised Drilling Unit (N), DRILL (N), HELDK, CRANE, POSMOOR ATA, DYNPOS-AUTRO, WELL
Accommodation
120 persons
Features
The GVA 4500 HWI is a heavy well intervention unit based on the proven GVA7500 design and is designed for mid-water
segments on the NCS. The rig is also applicable in other regions and comes with options for a number of different types
of well interventions using wireline and coiled tubing operations. GVA 4500 is designed for year-round well intervention
services on the NCS. The unit is able to provide light drilling tasks and a full range of heavy well intervention services.
MAIN PARTICULARS
MAIN DRILLING SYSTEMS / EQUIPMENT
Length over all
abt 112.0 m
Derrick SWL
500 mt
Width over all
abt 90.0 m
Set back capacity
500 mt
Width outside pontoons
76.7 m
Derrick hosting
500 mt
Length of pontoons
110.5 m
Riser tensioners
500 mt
Height of pontoons
9.75 m
Mud pumps
2 x 1,200 kW
Height to main deck
35.75 m
LRP stack
10 kpsi + Surface BOP 10 kpsi
Height of deck box
8.5 m
Four columns
17.55 x 16.25 m
TANK / STORAGE CAPACITIES
Transit draught
9.45 m
Fuel oil
1,575 m3
Transit displacement
38,300 mt
Drill water
485 m3
Transit deck & column payload
2,800 mt
Potable water
670 m3
Operation draught
23.15 m
Mud storage, col+pont
500 m3
Operation displacement
54,653 mt
Mud pits
200 m3
Operation deck & column payload
3,500 mt
Completion fluids
200 m3
Survival draught
17.15 m
Base oil
238 m3
Air gap in survival
18.6 m
Bulk mud
90 m3
Bulk cement
90 m3
Sack storage
30 x pallets
MAIN MARINE SYSTEMS / EQUIPMENT
Power generation
8 x 5000 kW
Thrusters
8 x 4000 kW
Thruster control
DP 3
Mooring system
8 point mooring, all chain
Main deck cranes
1 x 100 mt
1 x 75 mt
GVA Consultants AB | PO Box 11450, SE-404 29 Göteborg, SWEDEN | Östra Hamngatan 7, SE-411 10 Göteborg, SWEDEN | Tel +46 31 10 67 00 | E-mail gva@ gvac.se | www.gvac.se
GVA North America | 1080 Eldridge Parkway, Houston, TX 77077, USA | Tel +1 281 721 2100
Sales Contact Brazil | Avenida Presidente Wilson 231, 5th floor, 20030-021 Rio de Janeiro, RJ, BRAZIL | Tel +55 21 2103 7608
Sales Contact Singapore | 79 Anson Rd, #20-01, Singapore 079906, SINGAPORE | Tel +65 6210 7000
© GVA Consultants AB, 2014-07
Master of the Oceans