In April 2009, Deepwater Corrosion Services (DCSI) performed a retrofit to a pre installed impressed current cathodic protection (ICCP) system that that was damaged during hurricane activities in the Gulf of Mexico. The platform complex consisted of:
• One 12-pile platform
• One 4-pile structure attached by a bridge
The cathodic protection (CP) system consisted of:
• Four (4) modified RetroBuoy floats
• Heavy duty cable to be fitted to the existing transformer-rectifiers
During a post-hurricane inspection, a floating anode array was found to be missing, which put the cathodic-protection levels of the structure in danger of falling below acceptable levels.
DCSI designed and fabricated systems that would mount onto the existing frame and ballast mattress.
All four systems were successfully installed underwater in three days. The installation included the retrofitting of the anode float, pulling the power cables through the i-tubes on the North and South side of the structure and routing cables to the Transformer/Rectifiers.