Offshore field development and modifications for Dan F since 1991

The Dan complex in the North Sea. Photo: Maersk Oil

The Dan complex in the North Sea. Photo: Maersk Oil

As consultant to operator Maersk Oil, Ramboll has worked on a number of projects at the North Sea oil field, Dan F.

Creating structural designs for Dan F

Over the years, Maersk Oil has awarded Ramboll the detailed designs for six of the seven Dan F substructures. For Dan FC, Ramboll also carried out conceptual and detailed design of the 4,800t topsides structure.

A variety of brownfield modification jobs

A number of detailed designs and modification projects for both topsides and substructures have been completed over the years covering:

Structural integrity for jackets and pipelines:

  • Inspection planning for all Dan F substructures
  • Structural reanalysis of substructures, e.g. regarding new topsides modules
  • Pipeline studies
  • Tie-in projects
  • Pipeline upgrade and reanalysis
  • Life assessment for pipelines
  • Riser analysis
  • Upheaval buckling assessment for pipelines

Production optimisation and safety:

  • Safety evaluation
  • Noise measurements
  • Evaluation of maintenance - FMECA + RCM
  • Gas explosion simulations
  • Detailed design of modules e.g. new water injection facilities
  • Topsides structural projects
  • Flare reduction projects
  • De-bottlenecking projects
  • Detailed design of power generating facilities
  • Shutdown analyses
  • Preparation of installation procedures


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