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650Te Buoy

Measuring 11m in diameter at its base and 12.5m in height, the Disconnectable Turret Buoy (DTB) had been a key part of the subsea infrastructure of the Ettrick and Blackbird fields.

Recycling Rate:
Ettrick and Blackbird, Central North Sea
Nigg Energy Park, Tain
Turret Buoy decommissioning
Project Summary

Under the terms of the field decommissioning programme it was decided the 650Te DTB would be returned to shore for redeployment or recycling. With no alternative use identified, it was landed at Nigg Energy Park and craned onto the quayside for dismantling, with our expert team carrying out the work onsite.

The conical steel structure was dismantled manually by our decom team over a three-week
period using oxy-propane hot-cutting equipment. Mobile elevated working platforms enabled our team to access higher parts of the DTB, which was cut into sections and craned to the ground. As with all decommissioning and deconstruction projects, a full HSEQ risk assessment and method statement documentation were completed for client approval prior to any work commencing.

All metal was processed at the quayside to ESSS standard, before being exported to European steel mills for recycling into new steel products, delivering significant environmental benefits.

We are the largest metal recycler and exporter of processed metal in North and North-East Scotland and an experienced member of the decommissioning supply chain. With current strategically located licensed facilities in Aberdeen, Shetland, Evanton and Montrose, and the addition of our new quayside facility in Dundee opening in 2020 bringing our combined annual licensed tonnage to 360,000 tonnes, we are your decommissioning partner of choice.

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