Gyda Platform Removal

Single-lift removal of the complete 30,000-tonne Gyda platform from the Norwegian North Sea and transport to shore for recycling.

Company : Repsol Norge AS

Location : Southern Norwegian sector of the North Sea

Single-lift removal of 18,400-tonne topsides & 11,500-tonne jacket

First-time removal of entire platform (topsides & jacket)

First-time removal of conductors

Scope of work

Engineering, preparation, removal & disposal (ERPD) of 18,400-tonne processing/drilling/accommodation topsides & 11,500-tonne jacket (incl. all 32 conductors & subsea template)
Transfer of topsides & jacket to Iron Lady for load-in to Aker Solutions yard at Stord, Norway
Transfer of conductors and template to Sagro yard at Vlissingen, the Netherlands
Pre-lift preparations (incl. removal & separation of under-deck caissons)
Design, fabrication & installation of bearing blocks to accommodate horseshoe lifting tools
Topsides leg cutting
Jacket pile & leg cutting

18,400-tonne

processing/drilling/accommodation topsides

11,500-tonne

jacket

First-time removal of complete platform utilising all Pioneering Spirit lift systems (TLS, JLS & 5000-tonne crane)
Offshore scope completed in 12 days across two campaigns (removal, transport & load-in of complete platform)
Design, fabrication & welding of bearing blocks (horseshoe connections), lift trunnions with fixed spreader bars (jacket lift) & various frames (conductor removal)
Welding of bearing brackets with own crew in combination with Covid restrictions
Lift & transport of jacket in near-vertical position (60 degrees JLS angle)
Optimisations for topsides load-in to accommodate future toppling of the structure
Fabrication of jacket lift trunnions (capacity of 5500 tonne each)
Removal & reclining of 32 conductors (76 m each)

5500 tonne

Fabrication of jacket lift trunnions

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