Dredging Services
Subsea excavation, seabed preparation, trenching support, dredging consultancy, discharge planning and diver-assisted verification for marine construction and pipeline works.
Offshore Projects International
Subsea engineering, dredging, UXO survey and hyperbaric TBM support.
OPI MARINE delivers critical marine construction, underwater inspection, repair, strengthening and specialist diving works for ports, jetties, tunnels, pipelines and offshore assets.
2018Established
2009+Team experience
24/7Marine response
Safe. Precise. Reliable.
Critical underwater works with engineering-led execution.
Our commercial divers, engineers and supervisors combine marine construction know-how with international diving, NDT, tunnel and subsea repair experience. We plan, execute and document operations with clear method statements, risk controls and project-specific reporting.
Core Services
One contractor for complex marine and subsea scopes.
UXO Survey & Clearance Support
UXO search coordination, diver verification, magnetometer/sonar survey support, safe exclusion zoning and reporting for legacy ordnance risks in marine project areas.
TBM Hyperbaric Maintenance
Hyperbaric intervention planning, cutterhead inspection, chamber support, maintenance crew coordination and underwater/tunnel interface engineering.
Port, Jetty & Pile Works
Pile strengthening, corrosion control, splash-zone protection, structural support systems, concrete and steel repair for coastal and harbor structures.
Marine Intake & Outfall Pipelines
FRP, HDPE, steel, ductile and precast concrete pipeline installation, maintenance, internal sealing, alignment and subsea connection support.
Underwater NDT / DT
Visual inspection, UT, MPI, ACFM, TOFD, concrete core sampling, static/dynamic load testing and engineering assessment reporting.
Underwater Cutting, Welding & Demolition
Underwater arc welding, oxy-gas cutting, diamond-wire and robotic cutting of steel and concrete, marine dismantling and demolition works.
Salvage & Emergency Works
Rigging, lifting, buoyancy control, wreck removal planning, underwater survey and safe recovery support for critical marine incidents.
Capabilities
Designed for difficult access, high risk and high consequence works.
From underwater drilling and blasting to class inspections, OPI MARINE structures each project around engineering controls, dive team competence, equipment readiness and transparent documentation.
- Bathymetry, sonar survey and subsea consultancy
- UWILD / IWS class inspections for ABS, Turkish Lloyd and IACS members
- Hydraulic and pneumatic underwater drilling and blasting
- Cathodic protection, splash zone and corrosion control works
- Foundation pile strengthening and structural rehabilitation
- Project method statements, RAMS, HSE plans and as-built reporting
Project Communication
Clear 3D visuals for owners, contractors and authorities.
Use project-specific subsea illustrations to explain TBM maintenance zones, diver access, UXO search areas, lifting frames, pipelines, dredging slopes and structural strengthening details before mobilization.
HSE & Quality
Safety culture supported by trained divers and engineering supervision.
OPI MARINE projects are prepared with diving procedures, risk assessments, lifting plans, emergency response arrangements, inspection test plans and client-facing reports.
Personnel experience covers IMCA-recognized diving qualifications, commercial diving, underwater NDT, welding, risk management and oil & gas project controls.
Contact
Send your project drawings, site constraints or survey requirements.
We can prepare a technical approach, mobilization plan, equipment list and commercial proposal for your marine project.