IRM, construction & decommissioning
One-stop-shop IRM solutions for subsea infrastructure
Tailored approach to protect and repair subsea infrastructure
We provide tailored, fit-for-purpose inspection, repair and maintenance (IRM) solutions for subsea infrastructures, such as umbilicals, pipelines, manifolds, jackets and wind turbine foundations.
Every subsea IRM project requires a solution tailored to a specific situation or customer need. That is why we offer our customers efficient turnkey solutions. We adapt our methods to each project, whether it involves routine inspection or an urgent intervention. By combining our subsea expertise and capabilities in a smart integrated way, we protect and repair subsea assets safely, efficiently and with the lowest possible risk while saving time and reducing costs.
ACTIVITIES
N-Sea’s IRM, construction & decommissioning activities
Delivering tailored, fit-for-purpose IRM solutions for our customers:
IRM & construction frameworks
- Subsea inspection, repairs, replacements and maintenance (including emergency response repairs)
- Installation of CPS, ICCP and bell mouths
- Correction of pipeline and umbilical free spans
- Installation of J-tubes, tie-pipeline and jacket tie-ins, mattresses and grout bags
- Route clearance, including boulder and OOS cables removal
Decommissioning frameworks
For the end-of-life phase of subsea infrastructure, such as pipelines or manifolds, we reinstate project sites in a safe and environmentally sustainable condition. Our abandonment and removal services include:
- Disconnect and removal of cables and pipelines
- Removal of manifolds and conductors
- Seabed reinstatement (debris clearance)
- As-left surveys
VESSELS & EQUIPMENT
Dedicated vessels and specialised equipment
We deliver one-stop-shop IRM projects with a dedicated team of offshore IRM professionals, supported by a fleet of subsea tooling, ROV, diving and offshore support vessels and equipment:
EDT Protea
Remotely Operated Vehicles (ROVs)
Air Diving Systems
2024 – 2024
Trianel Windpark IRM campaign
North Sea, Germany
View project
Fast deployment of the DSV EDT Protea
Offshore execution time reduced
Wind farm downtime minimised
HOW WE OPERATE
Operations management
We ensure end-to-end integrity of our customers’ operations. Every subsea IRM campaign requires a solution tailored to a specific situation. We have the flexibility to offer a fit-for-purpose, one-stop-shop approach. Our projects are led by dedicated project managers, supported by in-house IRM professionals and executed by experienced offshore teams. With fast mobilisation we support our customers in reducing costs and minimising disruption to their assets.
SAFETY & SUSTAINABILITY AND QUALITY
N-Sea ensures safety during its IRM, construction & decommissioning operations
- Quality-assured preparation, HIRA-meetings, planning and service delivery prior to any offshore operation
- Toolbox meetings and daily safety meetings on board of the vessel
- Maintain and apply lessons learned register
Contact
Want to learn more?
Please contact one of our representatives.
