May 21, 2020

Maersk Supply Service, a leading provider of marine services and integrated solutions to the energy sector worldwide, will remove four 30” jacket-mounted drilling conductors and two associated conductor guide frames on the Dunlin Alpha platform, in the UK North Sea. With outstanding power management capabilities and dual cranes, combined with WROVs launched via moonpool, the Maersk Supply Service I-class vessels are a differentiator in maximising uptime and weather operability.
“This is a technically challenging scope with large periods of time spent alongside a platform. It is gratifying to see our engineered technical solution selected by Fairfield, as the removal of older conductors that cannot be pulled through topsides remains a challenge throughout the North Sea,” says Olivier Trouvé, Head of Integrated Solutions.
Project management and engineering commences this year, with offshore execution planned for 2022 or 2023 depending on option selected.
The Dunlin oilfield is situated 195 km northeast of Lerwick, Shetland, Scotland, in block number 211/23a and 211/24a. It was originally operated by Shell but was sold in 2008 and is now operated by Fairfield Energy and partners MCX. The field was discovered in July 1973 in a water depth of 151 metres (495 ft) approximately 12 km from the UK-Norway median line. The oil reservoir is located at a depth of 9,000 feet (2,740 metres). Production started in August 1978 from the Dunlin Alpha platform. This platform is a concrete gravity base (GBS) structure of the ANDOC type (Anglo Dutch Offshore Concrete). It has four legs and storage capacity for 838,200 barrels of oil. The total sub-structure weight is 225,000 long tons (229,000 tonnes) and it is designed to carry a topsides weight of 15,635 long tons (15,886 tonnes). The storage system was decommissioned by Shell from 2005 to 2007 prior to the sale to Fairfield Energy.
In May 2015, Fairfield Energy has announced plans to decommission its Dunlin Alpha platform.
Maersk Supply Service employs an international staff of approximately 1100 offshore and 250 onshore people. Headquartered in Lyngby, Denmark, Maersk Supply Service is represented globally with offices in Aberdeen, Accra, Luanda, Manila, Mexico City, Perth, Rio de Janeiro, St. John’s, and Singapore.
(Source: Maersk Supply/Wikipedia – Image: Dunlin Alpha platform/Whittaker Engineering)