Project Review:
Deepwater replaces four RetroBuoy floats in three days.



Overview

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



Installation

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 cable routing to the Transformer/Rectifiers.

Image Gallery

All retrofits took place at the 12-legged platform in the Gulf of Mexico.

All retrofits took place at the 12-legged platform in the Gulf of Mexico..

RetroBuoy Jr float being deployed from the port side work vessel.

RetroBuoy Jr float being deployed from the port side work vessel..

A view of the float with cable

A view of the float with cable.

RetroBuoy Jr float being deployed from the work vessel.

RetroBuoy Jr float being deployed from the work vessel..

RetroBuoy float that was retrofitted.

One RetroBuoy float that was retrofitted..

RetroBuoy float just being deployed from the port side work vessel.

RetroBuoy float just being deployed from the port side work vessel..

RetroBuoy Jr float being deployed from the work vessel.

RetroBuoy Jr float being deployed from the work vessel..