GVA7500 Semi-Submersible

GVA7500 Semi-Submersible

DP3 Deep Water Drilling Unit for Harsh Environment

Customers: GVA Consultants
Owner: Odfjell Drilling
Shipyard: Daewoo Shipbuilding & Marine Engineering Co

Main dimensions:

LOA 116.6 m
Beam over all 96.7 m
Beam outside pontoons 78.1 m
Height, baseline to upper deck 45.0 m
Length of pontoons 108.8 m
Draught, operating 23.0 m
Air gap operation / survival 13.5 / 17.5 m
Capacities Variable deck load capacity in excess of 7500 metric tonnes.
Dual derrick 2,000,000 lbs
Accommodation 158 persons (128 in North Sea area)
Electric power system with 8 x diesel generators 5,760 kW each.
Propulsion power with 8 x thrusters 3800 kW each
Regulatory requirements NMD, UK HSE, NORSOK Technical Safety and Working Environment, IMO DP class 3


Subcontracted personnel to GVA-C participated in the following scope of work under GVA-C management for the GVA7500 semi-submersible drilling unit:

  • Basic engineering arrangements, calculations, system PIDs, conceptual routings and preliminary weight estimations for machinery, ventilation and HVAC
  • El. Equipment arrangements, load analysis, functional descriptions, block diagrams and single line diagrams for electric and instrumentation.
Esa Jokioinen
Sales, offshore
Tel. +358 2 4336 344
Mobile +358 40 834 8112
Comments are closed.