Media Release: Technocean Subsea successfully completes two decommissioning campaigns for HESS Limited

Technocean Subsea 1

TECHNOCEAN Subsea has successfully completed a milestone decommissioning scope of work on the Angus Pipeline PL1857 Flushing project for global energy company, HESS Limited.

The company has also further executed a second successful campaign for the client which was completed in April.

Technocean Subsea deployed the Reef Despina Construction Support Vessel to complete the first workscope, which took place in the Fife, Fergus, Flora and Angus fields, commonly known as FFFA, located in the central North Sea in water depths of 70 metres.

As part of the phased decommissioning programme, Technocean Subsea performed the removal of the PL1857 pipeline contents with Remotely Operated Vehicle (ROV) assistance and delivered a filtration package, suction pump and associated down lines to evacuate pipeline contents to the vessel.

Technocean Subsea delivered a multi-skilled team to ensure project completion, flushing 290m3 of diesel from the Angus pipeline and recovering this content to deck with a flushing result of 180m3 pure diesel.

Following the successful engineering and management of Technocean Subsea’s first decommissioning project of this kind, the specialist subsea contractor was awarded a further decommissioning workscope with HESS Limited.

Again, supporting the Angus Pipeline PL1857 Flushing project, Technocean Subsea undertook the recovery of an 80 tonne wellhead protection structure which was successfully completed this month.

Both the campaigns were executed safely and efficiently.

Arne Riple, managing director of Technocean Subsea, said: “After what had been a very successful first workscope, we were delighted to then be supporting HESS further with an additional decommissioning scope of work.

“This demonstrates our ability to provide efficient engineering solutions supported by subsea equipment that is ideally suited to carry out such workscopes.

“I am very pleased that both campaigns were executed well and to our clients’ satisfaction.”

Technocean Subsea is an established offshore specialist group offering an integrated service scope, combining assets, project execution and engineering to the oil and gas industries.

With operations in the UK and Norway provided by a strong foothold in the North Sea and growing presence in West Africa, its experienced and knowledgeable team provides a range of subsea services including IMR, survey and light construction as well as decommissioning to clients worldwide.

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Contact: Jillian Sheran
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