Ninian North

General information

Client Canadian Natural Resources International (CNRI) 
Project Ninian North 
Location North Sea (UK) 
Vessels Pioneering Spirit, Oceanic 
Max. water depth 140 m (460 ft)

Scope of work

  • Engineering, preparation, removal, load-in and disposal (EPRD) of 14,200 tonne topsides (2020) and 8100-tonne jacket (2022)
  • Pre-lift preparation work including design and installation of underdeck lift points and removal/separation of pipework and obstacles
  • Cutting of the platform legs
  • Design and fabrication of “horseshoe” lifting units, support stools and grillage
  • Design and fabrication of jacket work platforms and rigging
  • Transfer of topsides (2020) and jacket (2022) from Pioneering Spirit  to Iron Lady  for load-in to dismantling yard

Project specials

  • Design and fabrication of horseshoes and extension pieces for topsides lift
  • Complete cutting of the legs one year prior to the single lift
  • First time Pioneering Spirit  in port for topsides transfer
  • First commercial lift with Jacket lift system

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Video gallery

Jacket removal by Allseas’ Pioneering Spirit

Ninian Northern topsides fast-lift

Photo gallery