Perenco UK (Perenco) is pleased to announce a decommissioning milestone with the successful completion of the plug & abandonment of three subsea wells at the Gawain field in the UK Southern North Sea, including the removal of the associated subsea infrastructure.

With a strong focus on health, safety and the environment, the project was completed without incident, despite the challenging conditions encountered when operating in winter in the Southern North Sea.

Perenco UK achieved this by working in collaboration with our specialist contractors and utilising a jack-up vessel equipped with an air-based diving and ROV spread to allow for rigbased diving.

The campaign lasted over 160 days and included over 340 air dives, with the completion of this project marking a key moment for Perenco UK and the wider Perenco group. Works will continue in 2024 with post decommissioning surveys to ensure the seabed is left clear and clean.

Perenco UK SNS Managing Director, Jo White, added:
“The completion of this significant project shows the commitment Perenco has to effective and efficient decommissioning of our SNS assets. It highlights the expertise of our specialist teams, with a mindset of developing innovative approaches, while maintaining a strong focus on health, safety and the environment.”

About Perenco UK

Perenco UK is a leading provider of energy to the UK. It has been present in the UK Southern North Sea Basin (SNS) since 2003 and has operated Europe's largest onshore oil field at Wytch Farm since 2011. In the North Sea, Perenco UK processes almost 15% of the UK national ga production. It owns and operates the largest infrastructure on the UKCS, comprising 45 offshore platforms, 14 subsea wells, and a network of more than 2,400 km of pipelines connected to its two onshore terminals at Bacton and Dimlington where the gas is received, treated, metered and then exported into the UK National Grid. Perenco UK produces approximately 40,000 barrels of oil equivalent per day, of which approximately 10,000 barrels is from Wytch Farm, in which Perenco UK holds a 95% share.
Perenco UK, as part of the UK based Perenco group, adheres to the highest operating standards and supports economic growth and social development wherever it works.