| Client | Repsol (previously Talisman) |
| Project | Yme topsides removal |
| Year | 2016 |
| Location | North Sea, Norwegian sector |
| Vessels | Pioneering Spirit |
| Max. water depth | 93 m (305 ft) |
| Platform type | Jack-up |
| Weight (t) | 13,500 |
| Dimensions L x B x H (m) | 56.4 x 54.0 x 28.0 |
| Number legs | 3 |
| Leg diameter (m) | 3.5 |
| Cut location +/- sea level (m) | 7 |
• Engineering, procurement and removal of the 13,500 t Yme mobile offshore production unit (MOPU)
• Pre-lift preparation work including installation of temporary strain fenders around caisson and leg cutting
• Design and development of leg cutting equipment
• Transfer of topsides from Pioneering Spirit to Iron Lady for load-in to dismantling yard (Lutelandet)
• Design temporary constraint between caisson and MOPU which can be released platform access
• Design fender system to protect caisson during move out
• Design and fabrication of five lift yokes specific to the MOPU
Challenges
• Suitable lift point configuration to maintain structural integrity of the MOPU body during lift (not possible to reinforce the MOPU hull)
• Releasing the constraints between caisson and MOPU without platform access
• Clearing the caisson during removal
