Cathodic protection
For caissons and minimal structures
An introduction
Deepwater has been installing anode replacement for caissons and other minimal structures for over 15 years. These smaller structures (conductors or caissons in up to 85 feet of water) generally only require a short life-extension of three-to-five years. To meet this demand, Deepwater has developed the RetroLink system, designed to be installed topside from a small vessel with minimal welding. Typically, a RetroLink string can be installed in less than 2 hours. Speedy installation requiring no subsea intervention makes the system very cost-effective for a life-extension project.
In 2009 and 2010, Deepwater sold and installed over 10 miles of RetroLink strings, retrofitting over 200 structures.
Related technical information
Offshore Cathodic Protection 101
A brief tutorial about the science of cathodic protection as it pertains to the offshore oil & gas industry, complete with diagrams, chemical equations, etc.
Offshore Cathodic Protection System Management
As offshore structures around the world are aging, and in many cases reaching the end of their useful lives, operators are looking for ways to reduce costs on subsea maintenance without increasing risk of failure.
Cathodic protection products for small structures
RetroLink™
For fast, short-term protection, the RetroLink system is a string of anodes installed topside and hung to the sea floor. For a design of five years or less on a harbor or jetty in less than 85 ft. of water, the RetroLink system delivers affordable and effective protection.
Sacrificial anodes
For new cathodic protection, Deepwater provides aluminum platform anodes, manufactured at ISO 9000 foundry facilities. Although standard sacrificial anodes are not practical for the majority of retrofit situations, they remain the best choice for most new construction projects.