Scarabeo 5 semi-submersible drilling rig.
Kongsberg Maritime recently completed the refit of the Saipem owned Scarabeo
5, a semi-submersible drilling rig, kept in position by eight Rolls-Royce anchor
winches and eight Kamewa Azimuth Thrusters.
The extensive refit project was based on upgrading and expanding the existing
Kongsberg Maritime vessel management, integrated control and dynamic positioning
systems and covered hardware and software upgrades, engineering, installation/supervision
and commissioning. During the refit, K-Chief 700 marine automation system from Kongsberg
Maritime was installed.
About Scarabeo 5
Scarabeo 5 was built at the Fincantieri shipyard (Genova), Italy and delivered
in 1990. Kongsberg Maritime originally installed the Albatross Vessels Management
- AVM and Dynamic Positioning Mooring System - ADPM together with a Hydroacoustic
Position Reference - HPR system, all of which were integrated with a dual redundant
network interface between all the nodes in the control systems.
The scope of the refit
Specifically, the scope of the refit project included the upgrading of the AVM
system to the latest technology and the expansion of the Integrated Control System
- ICS to include full main and backup control of ballast systems, Diesel Driven
Generator auxiliary equipment (including safety systems) and Drilling Monitoring
and Control System. The new system contains approximately 6500 I/O Signals and was
fully integrated with the Dynamic Positioning system that Kongsberg Maritime had
already upgraded in 2005. Additionally, Kongsberg Maritime assisted Saipem with
the redesign/rebuild of the Wheelhouse and engine control room operator environments
to comply with Norsok/ergonomic recommendations.
During the Dynamic Positioning Mooring System upgrade carried out by Kongsberg
Maritime Customer Support and personnel from contractor Servie AS a pre-study for
the RMCS upgrade was carried out, with network cables and distribution units pre-prepared.
The refit project was planned in 2007 with commissioning taking place over a
sixty day period in Olen, Norway late summer 2008. As a part of the contract, the
project is still live for one year after the customer acceptance test, and will
end early autumn 2009. The reason for this is the complexity of the retrofit and
the obvious need for variation orders that Saipem want to address to the same project
organization and personnel.