Cable Trenching

Trenching expertise delivered by capable assets and teams

Solutions that include engineering support, project management and modern 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 while 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 1475 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.

Rigid Pipelines – Jet trenching for rigid pipelines with diameters up to 900mm. Pipelines can be buried to depths up to 3 metres, providing protection from trawling and other risks. Rigid pipelines benefit from better stability as well as insulation.

Flexible pipelines – Jet trenching or cutting for flexible pipelines, providing protection from fishing and other risks. As with rigid pipelines, trenching provides improved stability and insulation.

Control Umbilicals – Jet trenching or cutting for control umbilicals, providing protection from fishing and other risks. A trenched umbilical is more stable on the seabed.

Subsea Cables – Jet trenching or cutting for various types of cables, providing protection from fishing and other risks. Trenching also provides cable stability, preventing movement on the seabed.

Capable assets delivering precision installation and trenching in harsh seas and challenging seabed conditions.

Q1400 KEY CAPABILITIES

  • Q1400 jetting mode max product diameter - 900mm
  • Q1400 jetting mode max trench depth - 3 metres
  • Q1400 cutting mode max product diameter - 250mm
  • Q1400 cutting mode max trench depth - 2 metres

Our Latest News:

Posted: 01/12/2017

Global Marine Group completes acquisition of Fugro’s trenching and cable lay business

Acquisition Further Positions Global Marine Group for Significant Offshore Power Market...

Posted: 07/11/2017

Global Marine Group launches new Safety Management System

Global Marine Group (GMG) has launched a new Safety, Security and...

Posted: 12/10/2017

Global Marine Group to acquire Fugro’s trenching and cable laying business

Acquisition further positions company for significant offshore power market opportunities Chelmsford,...

Posted: 08/09/2017

CWind Awarded TP Gate Contract

Two DONG Energy offshore wind farms set to benefit from CWind...

Posted: 05/09/2017

Global Marine Group Awarded Order of Distinction from Royal Society for the Prevention of Accidents

Chelmsford, Tuesday 5 September 2017. The Global Marine Group (GMG), a market...

Posted: 31/08/2017

Global Marine Group Chooses Port of Blyth to Extend UK Footprint

Chelmsford, Thursday 31 August 2017. The Global Marine Group (GMG), a market...

Posted: 17/08/2017

Global Marine Group Secures Cable Contract for Rampion Offshore Wind Farm

Chelmsford, Thursday 17 August 2017. Global Marine Group (GMG), a leading...

Posted: 08/08/2017

CWind Secures Major Cable Pull-in Contract at Merkur Offshore Wind Farm

Chelmsford, Tuesday 8 August 2017. CWind, a leading provider of services...

Posted: 03/08/2017

Utilising the Q1000, CS Recorder Completes Cable Reburial Project in Three Weeks

Chelmsford, Thursday 3 August 2017. Global Marine Group (GMG), a leading provider...

Posted: 03/08/2017

Global Marine Group to Ride Over 200 Miles for Children’s Charity Brainwave

Chelmsford, Wednesday 2 August 2017. Employees of the Global Marine Group (GMG),...

Posted: 03/07/2017

CWind Announces Two-Year Crew Transfer Vessel Extension on Key Offshore Wind Farm Project for Dong Energy

CWind, a leading provider of services to the offshore wind industry,...

Posted: 06/05/2017

Global Marine Group Reports Busy Spring Period

Heading into the summer months with resources engaged around the globe....

Posted: 02/05/2017

CWind Reaches Halfway Point of 15 Month Secondary Works Contract for Iberdrola’s Wikinger Offshore Wind Farm

CWind, a leading provider of services to the offshore renewables industry...

Posted: 25/04/2017

CWind Completes Vital Power Cable Repairs to Reconnect over 2,000 Scilly Islanders

CWind, a leading provider of services to the offshore renewables industry...

Posted: 16/02/2017

CWind Invests in Largest Crew Transfer Vessel to Date

CWind, a leading provider of services to the offshore wind industry,...

Posted: 14/02/2017

Introducing power cable capabilities to the CWind service scope

Positioning ourselves to meet wider customer needs As you may have...

Posted: 13/02/2017

CWind to Deliver Global Marine’s Power Cable Capabilities

CWind, a leading provider of services to the offshore wind industry,...

Posted: 26/01/2017

CWind Supports Centrica Jack Up Operations from Grimsby Hub

CWind, a leading provider of services to the offshore wind industry,...

Posted: 04/01/2017

CWind Provides Crew Transfer Vessels for EON Blade Maintenance Work at Robin Rigg

CWind, a leading integrated service provider in the offshore wind industry,...

Posted: 08/12/2016

CWind provide CTVs for Siemens Blade Maintenance Campaign

CWind, a leading provider of services to the offshore wind industry,...

Posted: 05/12/2016

CWind Provides ROV Subsea Inspections for E.ON at Amrumbank West

CWind, a leading provider of services to the offshore wind industry,...

Posted: 22/11/2016

CWind Wins Contract To Undertake Secondary Works For Geosea At Galloper Offshore Wind Farm

CWind, a leading provider of services to the offshore wind industry,...