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Wilhelmshaven: Green gas terminal to receive a FSRU

Geocean installed the FSRU connection, anchoring system and equipment for the Wilhelmshaven FSRU green gas terminal, in collaboration with ECOnnect.

  • Location Wilhelmshaven, GERMANY

  • Solution Transitional energy

  • Key date 2023 - 2024

  • Customer TES/ ENGIE

This green gas terminal has been included in the list of priority projects supported by the German LNG Acceleration Act. It embodies the key role of FSRU LNG terminals in the environmental transition by diversifying sources of supply, offering an alternative to more polluting energy sources, and helping to maintain economic development and the gradual migration towards completely decarbonised energy.rnrnGeocean implemented a u0022Fast Flexu0022 solution with a modular barge that is easy to set up and adapted to the high standards and specificities of the project. The client Econnect used thermoformable composite pipes instead of traditional rigid steel pipelines. This choice extends beyond their lightweight and corrosion-resistant properties. Their defining feature lies in their ability to facilitate swift installation, shorten delivery times, and adapt seamlessly to the distinct requirements of marine environments. The Geocean team quickly got to grips with the new equipment, adapting to its technical constraints.

Engineering, procurement, construction and installation :

  • Installation of a pipe system with :
  • Installation of 2 x 12″ flexible hoses, 60 m long.
  • Installation of 2 x PLEM.
  • Installation of a 6 x 7″ TCP pipe in a trench.

 

Assistance with FSRU connection and commissioning

  • Laying the power cable to supply the project with energy.
  • Implementation of dredging and backfilling operations
  • Infrastructure was installed 1.7 km from shore and 14 m WD.

A view from the field

Laurent Lhuillier,

Construction Manager on the Wilhelmshaven project

Carried out to a particularly tight schedule, against the backdrop of the energy crisis in Germany caused by the halt in Russian gas supplies, the Wilhelmshaven project required cutting-edge expertise, an extremely ambitious deployment schedule and a strong ability to adapt.

What was your role on the project?

My role involved defining the installation methods for the structure and assisting the barge captains during the execution of the works. I also ensured the smooth coordination of the various vessels, the barge and the tugs, so that the installation sequences ran smoothly.

What made this project particularly memorable?

The design phase was very intense, as the installation methods were unprecedented. The main challenge was the timeframe allocated for design and execution: less than six months in total to complete the project, against a backdrop of urgency and Germany’s energy independence.

What was day-to-day work like on-site?

The project brought together several specialist companies commissioned by GEOCEAN, and we handled the complex overall coordination. We had to stay very rigorous, plan the work sequences carefully, and ensure all teams were progressing in a coordinated manner.

 What stood out to you on a personal level?

The mix of around ten nationalities! This required a real ability to adapt daily to foster effective collaboration among people from different cultures. But this diversity was a real asset, making life on board exciting.

 What are you most proud of today?

I was pleased to successfully implement an unusual installation method that required our full expertise and to bring together teams with very different profiles and cultural backgrounds.