Le 04 December 2025
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in maritime engineering
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Le 04 December 2025
A NEW OUTFALL AT PUNAAUIA: A PROJECT TO PROTECT THE LAGOON
Geocean is currently leading the construction of the new marine outfall for the wastewater treatment plant in Punaauia, on the island of Tahiti. This major project is part of a broader initiative to modernize wastewater infrastructure and protect the Polynesian coastline in a sustainable way. Designed to replace an aging system, the new outfall will discharge treated water farther from shore...
Le 02 December 2025
WHY CHOOSE AN UNDERWATER PIPELINE TO CONNECT A MARITIME TERMINAL TO THE MAINLAND RATHER THAN AN OVERHEAD INFRASTRUCTURE?
Underwater solutions with less environmental impact Jetties and quays require a large footprint and extensive infrastructure, with a visual impact that is often substantial and alters the coastal landscape. In contrast, terminals with underwater pipelines, installed several kilometers from the coast, have no impact on the landscape. The environmental impact can be further reduced through advanced techniques such as directional drilling...
Le 18 November 2025
THE IMPACT OF DEPTH ON SWAC INSTALLATION: WHAT YOU NEED TO KNOW
The key to efficiency: deep-sea temperatures The performance of a SWAC is based on a fundamental physical principle: the deeper you go into the ocean, the lower the water temperature. At depths of 900 to 1,000 meters, the water remains stable at 5 to 7°C year-round, even in the tropics. This thermal gradient enables capturing “natural frigories” and transferring them to...
Le 20 October 2025
An Environment Day in Punaauia: taking action and sorting waste for the ocean
In September 2025 in Punaauia, Geocean mobilised its teams for a day of concrete action: sorting and recycling waste, good washing practices, water protection and biodiversity awareness. The aim was to transform principles into everyday actions on site and in the office, and to establish a lasting culture of continuous improvement. Geocean’s Environment Day was held in Punaauia in September 2025...
Le 08 September 2025
Wilhelmshaven FSRU Project: A successfully completed offshore challenge
We are proud to share the recap video of our contribution to the floating LNG terminal (FSRU) in Wilhelmshaven. This project realised in collaboration with ECOnnect involved installing the jettyless IQuay infrastructure and pipelines connecting the FSRU Excelsior directly to the German grid.This strategic project has enabled Germany to secure and diversify its liquefied natural gas (LNG) supply, highlighting the...
Le 15 July 2025
Marine XII project: Installation of the Yoke and Riser
An anchoring system specific to gas transport The gas anchoring and supply system plays a central role in floating liquefied natural gas (FLNG) operation. A floating tank for natural gas, transported from the production platforms and then transferred to a transport vessel. The latter moors alongside the FLNG to load and transport the LNG to a terminal. This infrastructure provides a mooring...
Le 10 June 2025
Arrival of the HLV on site: A new milestone in installing the mooring system
The HLV’s role: from logistics to installation The HLV made a first stop at Pointe-Noire, where she was reconfigured from transit to installation mode. Crews performed final inspections, fine-tuning, and preparations to guarantee flawless emplacement of the cargo. Aboard, several essential components were carefully repositioned to facilitate their offshore installation: The Yoke, ultimate element of the mooring system, is destined to be...
Le 20 May 2025
Marine XII project in Congo: Installation of anchor piles
Positioning of the barge Before drilling operations can begin, the Jack-Up Barge (JUB) is positioned on site and raised above sea level using its legs resting on the seabed. This positioning is essential to ensure optimal conditions for the following drilling operations. Installation of the casing, the drilling guide The casing, a metal guide tube, is installed to ensure accurate drilling: Positioning of the...
