All Services from Start to Finish :: Subsea Services provides a range of life of field support services, from initial site survey and planning all the way through to decommission

Trenching Services

 

Subsea Services Group has a wide range of trenching capability from some of the most powerful jetting trenching equipment in the world to mechanical trenchers capable of cutting through the most difficult subsea terrain. We can trench for product up to 16 inches in diameter, and our Inventory of subsea trenching equipment ranges from use  up to 2000m water depth up to the beach.

Example assets include:

  • Excalibur Trenching ROV
    Excalibur is a high powered trenching unit, incorporating exclusive technology designed to maximise its trenching and swimming efficiency. With 900 kW of power and a full 2000m water depth capability, it is configured for the full range of burial depths to three metres with the power and capability to bury into strong soils.

  • Injector Trenching System
    Injector is a powerful deep burial installation jetting tool, which benefits from Global Marine's patented hydroject technology. The package is able to fluidise seabed soil, enabling deep cable and flexible pipe burial with minimal residual tension.

  • Otter Trenching System
    Otter is a tracked shallow water remotely operated vehicle (ROV) designed to operate from a range of vessels. Capable of simultaneous lay and burial, or post lay burial, to a depth of 2.2m, and working from the inter-tidal zone, through the surf zone to the end of the cable route.

  • Rocksaw Trencher
    Rocksaw is a unique rock-trenching tool designed to operate from our specialist cable installation barges. The system is driven by a 2400HP hydraulic power pack, and is capable of excavation in a wide range of bedrock types in excess of 60MPa.