Johan Castberg Water Injection Inline Tees

Nautilus Subsea was contracted by IKM Ocean Design to perform detailed engineering of Water Injection Inline Tees for the infield scope at Equinor's Johan Castberg Project.

2018 - 2019
IKM Ocean Design
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The Scope of Work for the WI ILTs detailed engineering included the following:

  • Detailed design
  • Detailed analyses
  • Interface engineering
  • Fabrication drawings
  • Project management

The following design activities were performed:

  • Define structures' functionality, layout and overall design philosophy
  • Primarily, optimise design with respect to installation
  • Optimise overall performance of ILTs for all phases, i.e. fabrication, lifting, handling, seafastening, installation, tie-in, operation, commissioning and de-commissioning
  • Cathodic protection design
  • Production of fabrication drawings

The following load scenarios were analysed:

  • Flanges and piping loads limitation checks
  • Lifting-, handling- and installation operations
  • Landing on seabed
  • In-place conditions
  • Tie-in operations