Yme MOPU Removal

Pioneering Spirit’s maiden heavy lift project for the offshore industry, comprising single-lift removal, transportation and load-in to shore of the complete 13,500 t Yme mobile offshore production unit.

Company : Repsol (previously Talisman) / SBM offshore

Project : Yme MOPU (mobile offshore production unit) Removal

Location : Norwegian North Sea, 120 km southwest of Stavanger

93 m

Water depth

Scope of work

Engineering & removal of 13,500-tonne mobile offshore production unit (MOPU)
Transfer of MOPU from Pioneering Spirit to Iron Lady for load-in to dismantling yard Lutelandet, Norway
Pre-lift preparation work (incl. installation of temporary strain fenders around caisson & leg cutting)
Design & fabrication of leg cutting equipment

13,500-tonne

mobile offshore production unit (MOPU)

Specials & challenges

First commercial offshore lift with Pioneering Spirit
One of the heaviest offshore lifts in history
Design of temporary constraint between caisson and MOPU for release to allow platform access
Design of fender system to protect caisson during vessel move out
Design & fabrication of 5 lift support tools (yokes) specific to the MOPU
Design & fabrication of internal leg cutting tools
Suitable lift point configuration to maintain structural integrity of MOPU during lift (not possible to reinforce MOPU hull)

5 lift

support tools (yokes) specific to the MOPU

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