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Semco Maritime
Esbjerg Brygge 30
DK- 6700 Esbjerg

Siri Caisson Permanent Support

Customer: DONG EnergyLocation: Danish North Sea
Period: 2011-2014

One of the largest projects in the history of the Semco Maritime Wind, Oil and Gas Division was completed after 3½ years. The project included fitting of three winch platforms to the three legs under the topside of the Siri platform. The winch platforms are used as temporary work and installation platforms.

Competences and systems
  • Offshore installation of steel work on 3 platforms of approximately 450 tons each
  • Erection and removal of 130 tons of scaffolding
  • Extending all safety systems to scaffold cellar deck (PA, telephone, emergency light, sick bay etc.)
  • Onshore and offshore management and planning
  • Completed to the great satisfaction of DONG Energy
  • Completed within budget
  • More than 50,000 onshore man-hours (white-collar employees)
  • More than 300,000 offshore man-hours (blue-collar employees)