Allseas Other service
Platform Transportation and Installation
Transport and single-lift installation of offshore platforms and offshore wind converter stations, supported by the planned Grand Tour heavy transport vessel.
Description
Pioneering Spirit transports and installs entire topsides and jackets using single-lift, motion-compensation technology and dynamic positioning, reducing offshore hook-up time. It has been used for large offshore wind converter platforms, such as the 900-megawatt DolWin Kappa converter station in 2022.
Key features
- Topsides installation up to 60,000 tonnes; jackets up to 20,000 tonnes
- Grand Tour semi-submersible heavy transport vessel (delivery expected Q1 2028): 57 m beam, 60,000-tonne transport capacity, 180 x 57 m cargo deck, methanol-ready 24 MW propulsion with podded propulsion and air lubrication
- Barges Iron Lady and Braveheart support topsides transfers
Applications
- Oil and gas platform installation
- Offshore wind HVDC converter platforms
Specifications
| Topsides installation | up to 60,000 tonnes |
|---|---|
| Jacket installation | up to 20,000 tonnes |
| Grand Tour transport capacity | 60,000 tonnes |
| Grand Tour beam | 57 m |
| Grand Tour cargo deck | 180 x 57 m |
| Grand Tour propulsion | Methanol-ready 24 MW, podded |
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