STATOIL ASGARD EPSO
Hitachi Zosen Corp. has received an order for the construction of the largest class floating production, storage and offloading vessel (Asgard FPSO) from Maritime Ten- tech of Norway for STATOIL, the Norwegian state-owned oil company. The Tentech 900S design developed by Maritime Tentech is adopted as the design of Asgard FPSO.
The Tentech-900S, which is the world's largest FPSO, has a storage capacity of 148,000 m3.
The hull and turret mooring (loading) system is under construction at Ariake Works of Hitachi Zosen, Japan. After completion, Asgard FPSO will be transported to Norway for installation of topside facilities used for oil production. Asgard FPSO will be installed on Asgard field, 200 km off Norway, and the operation is scheduled to start on August 1998.
Features
1. Internal Turret Mooring System Asgard FPSO, which will be installed on deepwater (abt. 300m) and harsh environmental condition, incorporates internal turret mooring system with 12 anchor chains fixed in the sea bed and 24 risers connected to subsea manifolds through the internal turret. The cylindrical turret is installed in a moonpool, which is provided at fore part of the vessel, as illustrated.
2. Redundant Thruster System
The FPSO is equipped with redundant thruster system which will maintain heading control of vessel by 5 thrusters. Both internal turret mooring system and redundant thruster system provide the suitable situation in a harsh environment of North Sea.
The FPSO can weathervane
