SOLVING CHALLENGES

SUBSEA

Otech is an international subsea supplier to the oil & gas, shipping and industry with local presence in several countries.

Otech offers a variety of subsea services with it`s main focus on surface supplied diving operations.

With our slogan solving challenges subsea we embrace a challenging industry and provide specialised equipment, compact spreads and years of knowledge to deliver cost-effective, tailored solutions to meet individual client needs.

 
 
 
 
Engineering & Project Management

Engineering & Project Management

Otech has an extensive track record of delivering turnkey project management to our clients. Through innovative engineering solutions, experienced employees with technical backgrounds in design, project engineering we can deliver solutions to complex operations with high intensity and efficiency.

Our team has proven their capabilities by delivering complete solutions to high complexity operations ranging from ICCP retrofits, offshore class renewal surveys, hull repairs and more within time and budget, ensuring minimum downtime for clients.

Our in-house engineering, design and planning services for the execution of offshore and subsea projects, includes:

  • Installation analysis and calculations
  • Structural analysis
  • Vessel and equipment lay out planning
  • FMEA – Design, Fabrication and manufacturing support
  • FEED - Support and Technical expertise
  • Visualization and 3D modelling of operations
  • Modifications, design and conversions for existing installation

KEY PROJECTS:

Glen Lyon
Ocean Confidence – Hull repair
IMR OTECH BOAT

IMR

Inspections, Maintenance & Repair

Maintaining assets and ensuring their maximum performance is vital for your returns to all stakeholders.

Otech facilitate everything from identification to final repairs. Our leading position in the market for shallow water IMR services combined with our specially designed diving spreads and Light Living Crafts (LDC) allows for a unique way of planning, engineering, and executing operations.

Our experienced offshore crew and skilled engineers are familiar with IMR operations and always search the most effective solution for the customers’ requirements and needs.

  • Continuous class renewal survey.
  • Chain, Riser & Turret Inspection & Modifications.
  • Structure & Hull Inspection.
  • Quay & Seabed inspection.
  • Mooring inspections and assistance.
  • Cathodic protection.
  • Maintenance & Repair of Subsea and Marine Systems.
  • Pipeline or Cable Inspections & Repair.

KEY PROJECTS:

Berge Helene
Deepsea Atlantic
Thruster replacement

Thruster replacement

Our specialized team consist of employees with technical background from the largest manufacturers such as Rolls Royce (KaMeWa, Aquamaster, Ulstein), Wartsila (Lips) and Schottel and our capabilities include provision of project management, engineering and turn-key delivery of Azimuth thruster replacement and installation operations both offshore and inshore.Otech facilitate everything from identification to final repairs. Our leading position in the market for shallow water IMR services combined with our specially designed diving spreads and Light Living Crafts (LDC) allows for a unique way of planning, engineering, and executing operations.

Our unique Thruster Replacement Warranty provides customers the safety, quality and predictability needed to reduce their operational risk and increase returns for all stakeholders.

Through our extensive track record of several hundred replacement projects worldwide customers can be sure that the whole operation, from internal mechanical work to diving operations is performed with excellence. 

KEY PROJECTS:

Deepsea Atlantic
Leiv Eiriksson
Cofferdams & Underwater habitats

Cofferdams & Underwater habitats

The use of cofferdams and habitats is sometimes used to perform works situated under the waterline where repairs require dry conditions. Such solutions form a good alternative to dry-docking when maintenance and urgent repairs are required. 

Otech has extensive track record of developing innovative solutions and water integrity barriers as well as major repairs such as hull damages, impact damages, crack repairs for semi-submersible oil rigs, floating production units, jack-ups and offshore installations. Our technical personnel are experienced in engineering and design with focus on rapid, easy installation and easy transport.

Otech can provide project management, operational planning, engineering, mobilization/demobilization, vessels and have the overall responsibility to see the repair operations through from first inspection to completion.

KEY PROJECTS:

Ocean Confidence
Cathodic protection

Cathodic protection

ICCP retrofit

Otech is one of few specialists worldwide in retrofits of cathodic protection systems. A fully functional cathodic protection system is vital for protecting the submerged structure of any installation. 

Our ambitions to reduce client's overall maintenance costs has led us to develop specialized turn-key solutions for retrofits of submerged structures and lifetime extension upgrades converting sacrificial anode protection for ICCP systems. 

An Impressed Current Cathodic Protection system vs Sacrificial Cathodic Protection system provides a maintenance free diver or ROV friendly solution for up to 20 years, reducing maintenance costs for the owner by not having to replace submerged sacrificial anodes during any periodic surveys.

KEY PROJECTS:

 Eirik Raude
Ocean Valiant
Mooring systems

Mooring systems

Turret and buoy mooring systems either integrated into an FPSO, FSO or SPM and permanently fixed to the seabed can present challenging environments for repairs and modifications. Being at the center of production and often with variables such as offloading operations, maintaining such assets, require unique planning. Otech provides services relating to engineering, preparations, repair and maintenance where conventional methods or water depth for WROW access is limited or hook-up testing and systems verification. Our strong competence from projects involving risers, chain connectors, bearing systems, fluid transfer systems allow for detailed planning and minimal operational impact when maintenance or repairs is required.

Through high level operational procedures and innovation, we are able to deliver safe and effective services with no environmental impact.Through high level operational procedures and innovation, we are able to deliver safe and effective services with no environmental impact.

KEY PROJECTS:

FPSO Knarr
Salvage

Salvage

Otech provide emergency response, salvage and wreck removal services. The company has a track record of responding to distress situations in our operational regions and we care deeply about the environment where we operate. 

Our experience with salvage and wreck removal projects in navigation routes and port entry ensures a salvage team capable of delivering a full range of environmental care services, such as the locating of wrecks, removal and safe disposal of hazardous cargos and bunker fuels and planning and execution of wreck removals up to 500 tonnes.

KEY PROJECTS:

Oleg Naydenov