Decommissioning in Shetland “moves to the next level” following the explosive collapse of the Ninian North platform

Ninian oil platform - pre-collapse

The Dales Voe decommissioning facility in Shetland, operated by Veolia and Peterson, is said to be one step closer to becoming a centre of innovation for recycling offshore structures from the North Sea, following the successful collapse of the Ninian North platform using explosives for the first time.

The structure arrived at Dales Voe on 28 August 2020 via the Pioneering Spirit vessel operated by Allseas. Since arrival, the Veolia decommissioning team has decontaminated the structure, removing all hazardous materials to allow for future demolition in an environmentally friendly manner.

Ninian platform - before collapse

The Ninian platform is a 14,200-tonne steel structure that was delivered on eight legs each around 30m high. The operation seemingly required extensive planning to reduce the risk to the workforce working at height, and to allow for remote demolition via specialist excavators. A number of measures were taken over several months to bring the structure much closer to the ground.

On 5th June 2021, the platform was successfully collapsed without incident.

Ninian platform - following the collapse

Now at the end of its working life recovering this structure is important to maximize the value of the materials contained within, and further the sustainability of the offshore industry. With a recycling target of 97% the project will now move into a demolition phase expected to last several months.

Ninian - after collapse

Set up to provide a full decommissioning service, the partnership services include decontamination, deconstruction, waste management and environmental services together with associated integrated logistics, and marine and quayside services. The partnership has been providing onshore decommissioning services for over 12 years and achieved ‘excellent’ environmental assessment ratings in the process. These services are offered by the partnership from their sites including Lerwick Dales Voe, Lerwick Greenhead Base and Great Yarmouth.