Brent Alpha

General information

ClientShell UK Ltd 
ProjectBrent Alpha 
LocationNorth Sea (UK) 
VesselsPioneering Spirit 
Max. water depth140 m (460 ft)

Scope of work

  • Engineering, procurement and removal of the 16,000 t Brent Alpha topsides
  • Pre-lift preparation work including removal and separation of underdeck caissons and risers, installation of lift points at the legs and sea fastening of modules
  • Strengthening of the platform legs by grouting
  • Cutting of the platform legs
  • Design and fabrication of lifting horse shoe yokes, support stools and grillage
  • Transfer of topsides from Pioneering Spirit to Iron Lady and load-in to dismantling yard (Hartlepool, UK)

Project specials

  • Design and fabrication of bearing block type lift points
  • Design and fabrication of (horse shoe) lifting yokes
  • Design and fabrication of leg support structures
  • Design of platform shear restraints incorporated in the leg cutting design for topsides stability after leg cutting