10:20 - 10:45
Wednesday, 18 September 2019
S1.3 P-67 transport: An iconic breakthrough. The inconveivable, realized.
Gastech 2019: P-67: Review of Dry Transportation of FLNG's/FSRU's/FPSO's
On behalf of Petrobras, Boskalis executed the dry transportation of the P-67 FPSO in 2018 from the COOEC Qingdao yard in China to Rio de Janeiro in Brazil. The P-67 FPSO will produce 150,000 bpd and compress six million cubic meters of natural gas daily in the Lula North section of the Lula-Cernambi field in the Santos basin. The transportation of the 90,000-tonne box-shaped P-67 unit around the Cape of Good Hope poses various challenges to Petrobras which incentivized the dry-tow operation method in order to ensure a seamless and safe delivery of the unit at location. The operation was executed with the Boskalis semi-submersible heavy lift vessel, Boka Vanguard and is the heaviest cargo ever to be transported by this method.
The dry transportation of the FPSO provided Petrobras with huge benefits in terms of time and reliability. The Boka Vanguard is the largest and only open stern and bow semi-submersible vessel in the world. The construction of the Boka Vanguard in 2012 opened up opportunities for transports like the P-67 and will provide the same opportunities for the FSRU and FLNG markets to utilize this vessel to increase their schedule reliability and reduce their time to market.
Boskalis would like to address challenges and lessons learned from the P-67 project and illustrate with the various media available. One of the main challenges for this project is the sheer size and weight of the P-67 FPSO. Controlling and loading a weight of 90,000-tonne influenced by wind and current with very limited clearance is exceptionally challenging. In order to load the P-67 FPSO in a safe and controlled manner, new loading concepts and support structures have been developed.
In the presentation, Boskalis will further elaborate on:
- Preparation and Engineering
- Dimensional feasibility and Clearances
- Vessel Outfitting
- Wet-tow and Float-on operations in Qingdao
- Dry transport
- Float-off and Wet-tow operations in Rio de Janeiro
A key lesson learnt from this project (Example of Good Practice) would be to constantly challenge oneself to be open and innovative. The openness of the project team led to alternative solutions to be discussed and considered. This, combined with the innovative nature of the team led to the concept of the guide frames design and solution to rotate the position of the FPSO 180degs, leading to a successful loading operation.
At the time of the conference, Boskalis could also combine and include a review of the Exmar Tango FLNG dry transport basis the Forte from China to Argentina which is currently ongoing.