McDermott wins wide-ranging platform contract for Tyra offshore Denmark

Maersk Oil has contracted McDermott International to provide engineering, procurement, construction, and commissioning services for the Tyra Redevelopment project in the Danish North Sea.


Scott Munro, vice president Americas, Europe and Africa at McDermott, said: “We have had a long relationship with Maersk Oil, and are committed to…a safe, on-schedule, within budget project, and one which fully meets the stringent requirements for automation and corrosion resistance, ensuring a long and productive life for the new facilities.”


McDermott’s scope covers two separate work packages.


One concerns fabrication of:

  • Tyra East G platform’s gas processing topsides, weighing around 18,188 tons (16,500 metric tons); including two 328-foot (100-metre) connecting bridges, weighing 468 and 771 tons (425 and 700 metric tons); and a 449-foot (137-metre-long) flare.
  • Two wellhead topsides for Tyra East B and Tyra East C, respectively 1,763 and 1,366 tons (1,600 and 1,240 metric tons); a 2,480-ton (2,250 metric ton) riser topside at Tyra East E; two wellhead topsides for Tyra West B and Tyra West C at 1,421 and 1,488 tons (1,290 and 1,350 metric tons) respectively; and a riser topsides at 335 tons (304 metric ton) for Tyra West E. Also included are four connecting bridges ranging from 60-1,102 tons (55-1,000 metric tons).


In addition, McDermott will fabricate six module support frames (MSFs) with a total weight of 1,289 tons (1,170 metric tons) to raise the existing platforms 42 feet (13 metres) to counter seabed subsidence.


The existing four wellheads and two riser topsides and old bridges will be removed, but with the original jackets retained to accept the new topsides with their MSFs.


McDermott plans to perform project management, engineering, and supply chain management from its office in Kuala Lumpur and to fabricate and assemble the structures at its yard at Batam Island in Indonesia.


Work should start early next year, with all packages ready for sail-away by the 1st February 2020 and the 1st February 2021.


The Tyra gas field is 139 miles (225 kilometres) west of Esbjerg in blocks 5504/11 and 12 and acts as the centre of Denmark’s national energy infrastructure, processing 90% of the country’s gas production.


It has been in production since 1984.