LERWICK, UK – The Dales Voe decommissioning site in Shetland has received the ST-1 gas production platform from Spirit Energy’s Greater Markham Area on the Dutch/UK median line of the North Sea.
Veolia and Peterson will collaborate on dismantling and disposal, the aim being to recycle 97% of the materials and equipment.
Where possible, some equipment items that have further operational life will be sold for re-use.
ST-1 comprises a 45-m (147-ft) tall, 1,300-metric ton (1,433-ton) steel jacket and a 1,200-metric ton (1,323-ton) topsides.
The platform was installed in 1994, 160 km (99 mi) offshore. It featured three levels including a cellar and accommodation unit, the weather deck with pedestal crane, and a mezzanine deck.
Production ceased in April 2016, and the facility entered warm suspension mode in September 2017.
Seaway 7 removed the topsides and jackets in two single lifts using the Seaway Strashnov heavy lifting vessel.
Dales Voe features a 60 metric tons/sq m (66 tons) strong quay. Services provided include decontamination, deconstruction, waste management and associated integrated logistics, marine and quayside facilities.