Service line that supplies subsea survey and robotics technology and support services to the offshore energy sector.
Service line that provides lifting, pulling and deployment capability for offshore energy infrastructure.
Underwater hull cleaning, inspection and propeller polishing using the Envirocart System, with certification of inspection findings. Holds Fremantle Port Authority Operational Planning Approval.
EPC/EPIC offshore construction: fabrication and installation of wellhead jackets, topsides and modules, subsea pipelaying, riser installation, hook-up and commissioning, and offshore survey.
Project management, engineering and subsea installation of structures, pipeline spools, flexible risers, pipelines, umbilicals and protection structures, including tie-in and PCO.
Inspection, maintenance and repair (IMR) of subsea infrastructure: integrity inspections, repairs, module replacements and heavy lifts, with remote piloting from an onshore center.
Diverless decommissioning of subsea infrastructure, from feasibility studies and engineering through removal, dismantling and recycling, including waste management until final disposal.
Trenching and burial of pipelines, flowlines, power cables and umbilicals using jetting ROV trenchers and ploughs, from nearshore to full field depth.
Subsea services for offshore projects: construction and installation, decommissioning, engineering, IMR, ROV and AUV services, saturation and air diving, survey and positioning, towing and mooring.
Marine and subsea services for fixed and floating offshore wind projects: transport and installation, cable installation and repair, anchor and mooring installation, and seabed preparation.
Ship management for offshore vessels and subsea assets, covering crewing, maintenance, mobilisation, and project and newbuild oversight. DOF has provided ship management since 1981.
Operation of an offshore fleet that includes construction support vessels (CSV), anchor handling tug supply (AHTS) vessels, platform supply vessels (PSV), ROV systems and AUV systems.
Underwater hull cleaning by remotely operated vehicles using soft water jets, with a closed-loop filtration system that captures removed biofouling. Cleaning rate 300–600 m²/hr.
Propeller polishing, ROV-based UWILD inspections and cleaning of niche hull areas, delivered with a network of ship-service partners.
Hull cleaning service for ships.
Proactive underwater maintenance service.
Turnkey ROV services: visual inspection (GVI/CVI), corrosion and NDT, construction support, marine growth cleaning, seabed imaging and bathymetry, pipeline and cable tracking, UXO survey.
ROV rental with equipment packages, technical and offshore piloting training, custom tooling design and integration of client systems.
Offshore operations with Blue Essence® 12-metre uncrewed surface vessels and electric ROVs (eROVs), supervised from 10 remote operations centres, for surveys, inspections and monitoring.
Subsea hydraulic and mechanical well intervention and well integrity services delivered from riserless and riser-based well intervention vessels.
Well decommissioning under a single project-managed contract, covering well suspension, plugging and abandonment, tubing removal, tree recovery, saturation diving and seabed clearance.
Seabed site clearance, boulder removal, cable trenching by self-propelled trenching ROVs, and explosive ordnance disposal for offshore wind farms and subsea interconnector cables.
Intervention riser systems, well intervention services and robotics tooling for offshore drilling, including well clean-up, well commissioning, top hole drilling and ROV support.
Deepwater inspection, repair and maintenance of offshore oil and gas infrastructure, including saturation diving from vessels with 18-man saturation systems rated to 300 metres of seawater.
Diver-free underwater hull cleaning by ROV. Adjustable high-pressure seawater jets remove fouling and the waste is collected. Available alongside or at anchorage at listed ports.
Location and recovery of lost assets in waters from shallow coastal areas to the deepest ocean depths.
Air, mixed gas and saturation diving services for the oil and gas industry, including platform structural repairs, pipeline repairs and re-routes, and hyperbaric and wet welding.
Vessel-based well stimulation, riserless light well intervention, and flowline remediation and flow assurance using multi-service vessels equipped with ROVs.
Design and construction of offshore plants, including fixed and mobile platforms, sea-bed hydrocarbon extraction control systems and subsea transport pipelines.
Offshore drilling services with a fleet of drillships, jack-ups and semi-submersibles for shallow to ultra-deepwater and harsh-environment operations.
EPCI of offshore wind foundations, covering wind turbine generator jacket foundations and offshore substations, with engineering and fabrication in Arbatax (Italy) and Karimun (Indonesia).
Subsea and conventional offshore field developments: design and engineering, supply chain, fabrication, survey, and installation and commissioning of production facilities.
Life-of-field services for offshore energy production facilities.
Offshore wind installation by Seaway7: cable laying, WTG foundations, offshore substations, wind turbine transport and installation, heavy transportation, and floating offshore wind.
Integrated engineering, procurement, construction and installation (iEPCI) of subsea developments. It combines SPS and SURF scopes from design to life-of-field services.