Services | Marine Operations
Management of Seabed Stakeholder Assets
Pelagian are specialists in the management of work around existing seabed infrastructure. We provide a comprehensive stakeholder management service to cable owners, survey companies and cable installers, managing vital geospatial information when crossing or working close to seabed assets such as oil industry pipelines, wind farms and existing subsea cables.
We investigate and identify all the relevant seabed stakeholders, providing them with detailed activity notifications; enabling survey and installation operations to occur over their assets with safety and due diligence.
Pelagian uses a bespoke stakeholder management system for the research and tracking of existing and planned seabed infrastructure for the duration of the project lifecycle. The system is GIS-based and utilises live data from the oil industry, telecoms, offshore power/renewables and government sources.
Marine Environmental Management
Pelagian provides a comprehensive environmental management solution to its customers when working in the world’s environmentally sensitive areas.
Our specialist marine ecology team provides detailed analysis of marine ecosystems, which includes extensive knowledge of working in Posidonia Seagrass areas. We advise cable owners and installers of safe cable routeing and installation techniques for these fragile habitats.
Pelagian uses a bespoke GIS based management system for the research and mapping of existing and planned protected seabed habitats at both global and national levels, including National Parks, Marine Protected Areas and sensitive coastal regions.
Technology & Tools
Pelagian’s technology solutions draw on decades of hands-on offshore experience. With a proven track record working with all the major submarine cable manufacturers and installers. Pelagian promotes the use of new technology to drive down costs, increase project efficiency, enhance safety and take care of the environment.
Cable Burial Technology
Pelagian has a long track record of operating and deploying seabed burial equipment. When Pelagian was founded, our first projects involved cable laying in rivers and harbours and trenching of array cables in difficult conditions.
The knowledge gained on these early projects enables us to provide expert advice on cable burial technology and when combined with our knowledge of marine surveying, sediments and cable engineering, gives the customer a complete risk mitigation package.
Our independent and practical consultancy services give our customers the confidence to make the right commercial and technical decisions on cable burial technology to achieve their aims for a safe and cost effect cable installation. Pelagian provides that enhanced security and risk management expertise for the life of the cable.
Route Clearance and Pre Lay Grapnel Runs (RC/PLGR)
Pelagian provides an industry standard Route Clearance and Pre Lay Grapnel Run (RC/PLGR) capability to subsea cable projects, using our dedicated equipment and experienced personnel; project managed by a dedicated and experienced office team.
Our PLGR Equipment is a fully modular spread, which includes a Saddleback and Running Line Monitors, a 2m De-trenching Grapnel and Rennie/Gifford grapnel anchor sets which can be deployed on a variety of PLGR operations in the most challenging conditions.
The equipment is robust and has been tried and tested, being used in recent renewable energy projects. The spread is containerised to allow it to be mobilised quickly from the UK to the customer’s vessel anywhere in the world.
Shore End Installation
Pelagian’s shore end personnel are highly experienced in the installation of cables in the coastal zone, having experience of installation in telecoms, oil and gas and offshore power.
Pelagian provides a dedicated shore end management approach to assess the landing point conditions and hazards to installation. The team organises the procurement of labour, equipment and materials to comply with local working practices, permits and building codes.
Our team manages the shore end work to mitigate risk and to meet the highest standards of safety, security and environmental awareness, ensuring that the new cable once installed, is adequately protected for its life time with minimal impact on the environment.
