Subsea Trenching System

LEVIATHAN

LEVIATHAN

LEVIATHAN has been built on proven trencher technologies and is capable of trenching a wide variety of cables, umbilicals, flexible and rigid pipe, including anode and piggyback handling.

LEVIATHAN offers 1600 hp total power in a multitool vehicle with burial tool options of water jetting and chain cutting. IHC developed LEVIATHAN from first principles to produce a vehicle which has been specifically designed to mitigate the risks associated with trenching in shallow water conditions and challenging offshore locations. Through close communication with a wide range of industry experts, and benefitting from previous industry experience, IHC has identified the critical limitations of previously available trenching assets.

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This knowledge allowed IHC to tailor LEVIATHAN design to overcome the typical challenges faced by the installers with the ability to:

Technical Specifications

  • Stay on station in strong subsea currents and wave action
  • Operations in shallow water conditions
  • Trench on uneven seabed topography, including climbing and traversing steep slopes
  • Maintain trench integrity in arduous seabed conditions
  • Negotiate boulders, sand waves and subsea obstacles without impacting trenching performance or trench depth
  • Highly controllable manoeuvrability allowing operations close to subsea infrastructure and
  • Perform both jetting and mechanical chain cutting operations

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