Cable Trenching

Trenching expertise delivered by capable assets and teams

Solutions include: engineering support, project management and capable assets delivered by a proven team with an extensive track record

Adding the high performance Q1400 trenching system to our Group assets enables us to undertake projects which require precise installation in challenging seabed environments. The Q1400 is able to perform jet trenching on subsea pipelines, cables and umbilicals in soils of up to 100KPA. Additionally we can also perform mechanical chain cutting in soils of up to 250KPA.

The Q1400 is extremely adaptable and can uniquely transfer from jetting to cutting modes whilst at sea, avoiding the need to return to port for system changes. It consists of a common trenching module and separate tracked jetting and mechanical cutting skids, with a customised launch and recovery system (LARS) rated to Lloyd’s sea state 6. A deck-transfer skidding system enables safe mode changes at sea without craneage.

The Q1400 system is capable of free flying in jetting mode and operating in water depths of up to 3,000 metres. It has 1,475 available horsepower with two 400KW high-pressure pumps up to 15Bar and 2,000 cubic metres per hour. Two additional 150KW hydraulic pumps provide low-pressure water and hydraulics. The system also has the capability to deploy an additional backwash tool or eduction and a tool to create backfill in soft clays.

The Q1400 has a proven track record and has successfully completed numerous projects for customers in oil & gas and in the offshore renewables sectors including Lincs and Humber Gateway Offshore Wind Farms and at BP – ETAP and Corrib oil & gas projects.

Solutions include: engineering support, project management and capable assets delivered by a proven team with an extensive track record

 

  • Precision installation and trenching in challenging seabed conditions
  • Trenching of cables, rigid & flexible pipelines and umbilicals
  • Providing maximum protection of assets
  • Proven success in offshore renewables and oil & gas projects
  • Project support at all stages, from planning to final survey and as-built report
  • Engineering, project management and trenching delivery
  • Q1400 and Q1000 jet trenching systems
  • Q1400 jetting mode max product diameter - 900mm, max trench depth - 3 metres
  • Q1400 cutting mode max product diameter - 250mm, max trench depth – 2 metres

​​The acquisition, announced on 12 October 2017, is subject to customary closing conditions, and is expected to close in the fourth quarter of 2017.

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