AONDE INSTALLATION GAS PIPELINE NORTH SEA

Subsea works by Aquatech Offshore

Client: Neptune Energy | ONE-Dyas | NGT

Project description

In 2022, Aquatech Offshore was engaged by Neptune Energy and ONE-Dyas to carry out two distinct anode installation projects using the DSV RS Sentinel.
Our expertise in subsea operations ensured the successful completion of both tasks within a tight timeframe.

Specialized subsea services by Aquatech Offshore:

Anode Scope 1 – Neptune Energy
• Conducting ultra-shallow DP2 DSV operations with less than 6 msw under the vessel’s keel
• Welding of earth connection to the existing cathodic protection system
• Installation of a Bracelet Anode on a 36” gas pipeline

Anode Scope 2 – ONE-Dyas
• Design, fabrication, and installation of four custom-made anodes
• Execution of complex diving tasks inside a subsea dome at 28 msw
• Use of Nitrox diving to enhance safety and operational efficiency

Aquatech Offshore played a vital role in the execution of both projects, delivering high-quality results within just 7 days. These operations demonstrated our ability to operate in ultra-shallow waters, perform precise subsea welding, and carry out complex intervention tasks under pressure.