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General enquiries
Tel. +45 7916 6666


Semco Maritime
Esbjerg Brygge 30
DK- 6700 Esbjerg


Customer: Total E&P Denmark A/S
Location: Danish part of the North Sea
Period: 2020-2022

 The COPSAT team  will use the Tyra suspension period to align with the new Tyra operational mode, execute deferred maintenance, accelerate major near-term maintenance for the close-in period and carry out optimisation projects on the unmanned satellites Valdemar AA/AB, Valdemar B, Tyra South-East and Roar.

Competences and systems

The responsibilities of Semco Maritime and Muehlhan include:

  • Maturation and preparation of scope
  • HSE activity plan
  • Task risk assessment (TRA)
  • SIMOPS dossier & matrix
  • Detailed planning and reporting
  • Survey plans and offshore survey
  • Permits to work
  • Rigging/lifting plans
  • Isolation plans - mechanical/electrical
  • Offshore management and execution
  • Offshore execution of general maintenance
  • Offshore execution of minor optimisation projects
  • Mechanical/electrical completion in PIM

  • Approximately 150,000 man-hours will be used within a period of 1 year, where up to 30-50 workers will work on the satellites at the same time day and night
  • Preparation and maturation of scope is extremely important to be able to foresee obstacles, issues and simultaneous work activities