Page 32 - Industrial Plant 2015

Fig. 3 – Saipem FDS2
in action in Nigerian
waters

and are now working on the project; Novel aspects and technical challenges:
• 1,200 people will be working in Port Harcourt at the main challenge will be
the installation of the risers
peak;
• 40,000 tons of steel will be fabricated and Turning to the marine operations, the main challenge
will be the installation of the risers, which will have to be
installed; top-tensioned by huge buoyancy tanks of 6.0 to 7.5 m
• the hybrid risers will be 1.5 km long; diameter, and up to 50 m long.
• 1,200 people will be working 24/7 during the The main marine operations are planned to be carried
out from 2016 to 2017 by Saipem’s state of the art FDS
offshore campaigns to operate a 25 vessel (Field Development Ship) and FDS2 ultra deep water
offshore armada. field development ships (figure 3) and by the Saipem
3000 heavy lift DP (Dynamic Positioning) vessel
The Egina UFR presents novel aspects and technical (figure 4)
challenges: chief among these is the organization of Most of the project activities, including the design
the riser layout, comprising eight top-tensioned risers engineering and the fabrication, will be performed in
including production, gas export and water injection Nigeria under the local content rule called “Nigerian
types in a very compact area; and the resolution of the Content Act” of 2010.
high fatigue loads induced by the slugging effect, in
particular to the riser base spools.

Fig. 4 - Saipem 3000
heavy lift DP vessel

Industrial Plants - May 2015

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