Middle East

UK Regulators Green Light TAQA’s Cormorant Alpha

UK regulators have approved a decommissioning plan submitted by TAQA Bratani to remove the top surface of the Cormorant Alpha platform in the North Sea.

Last year, TAQA submitted a plan to decommission the top surface of the Cormorant Alpha platform in block 211/26 of the Northern North Sea (NNS), about 103 km northeast of the Shetland Islands and 41 km west of the UK / Norway median. The Cormorant Alpha platform, installed in May 1978, produced the first oil in December 1979. Taqa took over the platform from Shell in 2008.

The Cormorant Alpha platform consists of a four-legged concrete gravity-based structure and a steel box girder structure that supports two levels of modules on the top, at a depth of approximately 150 meters. The living quarters (LQ) can accommodate 175 people. The total topside installation weight is currently estimated at approximately 25,546 tonnes.Credit: TAQA Decommissioning Plan

Taqa evaluated options for reuse of the Cormorant Alpha platform in a decommissioning plan submitted to the Offshore Oil Regulators (OPRED) for Environmental and Decommissioning in the United Kingdom last year, and top-side reliable reuse options I concluded that it was not.

“Alternatives for reuse include offshore renewable energy power plants (wind, waves, tides), marine research stations,
Reuse of training centers, fish farms, carbon capture, storage sites, and facilities elsewhere.But after thorough
Review TAQA concludes that reuse is not a reliable option due to the age of the infrastructure, the distance from the coast and the shortage.
Of demand and capital expenditure combined with annual operation and maintenance costs of the converted facility
It’s not economically feasible. “

“Two possible ways to remove the top surface are being considered. Single lift and modular removal,” Taka said at the time.

The first option is to use a single lift vessel (SLV) to lift and move to the shore as one unit. The second is to use a heavy lift ship (HLV) to remove the top surface of the modular section.

“At this stage, no specific method of performing the removal work has been determined. Both are potentially suitable. These decisions depend to some extent on the final contractor’s proposal,” Taka said. Says.

The Cormorant Alpha is currently expected to be discontinued in the fourth quarter of 2023.

https://www.oedigital.com/news/494544-uk-regulator-greenlights-taqa-s-cormorant-alpha-platform-topsides-removal-plan UK Regulators Green Light TAQA’s Cormorant Alpha

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