Cathodic Protection
For Caissons and Minimal Structures

An introduction

Deepwater has been doing anode replacement for caissons and other minimal structures for over 15 years. These smaller structures in up to 85 feet of water (conductors or caissons) 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 from a small vessel topside with minimal welding. Typically, a RetroLink string can be installed in less than 3 hours. Speedy installation with no subsea intervention makes the system very cost-effective for a life extension project.

In 2009, Deepwater sold and installed over 6 miles of RetroLink strings, retrofitting over 100 structures.

Related Technical Information

Offshore Cathodic Protection 101 (Paper)

(2007) by R Baxter, J Britton (DWC In-House) Abstract: This paper is a basic introduction to the scientific concepts behind cathodic protection. Intended for internal training, the topics covered are: anodes, cathodes, sacrificial or galvanic cathodic protection ...

Offshore Cathodic Protection System Management (Paper)

(2004) by J N Britton Abstract: 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. This paper presents three case histories ...

Cathodic Protection Products for Small Structures