Cathodic Protection
For FPSO's & Floating Production Equipment

An introduction

Deepwater designs and manufactures cathodic protection systems for purpose-built and conversion FPSO (Floating Production Storage and Offloading) structures. The nature of the FPSO presents some interesting cathodic protection challenges. In certain instances they are treated as ships and in others as floating production platforms, requiring a cathodic protection designer to have extensive knowledge of many differenct facets of corrosion prevention. Moorings, hulls, ballast tanks, and other parts of the FPSO all require different cathodic protection, so to design a system sto protect the structure as a whole, each part must be studied seperately.

For ballast tanks or hull exteriors, we provide stock aluminum and zinc sacrificial anodes, made at one of our two associated, ISO 9000 certified foundries.

For moorings, where larger amounts of exposed steel require a lot of cathodic protection, we recommend the RetroBuoy impressed current cathodic protection (ICCP) retrofit system. Providing up to 400 Amps of cathodic protection for 25 years, it is the most effective and efficient anode sled on the market. The Buoys sit on the seabed and the feed cables are deployed in a "Lazy S" configuration back to the surface. Whether turret-moored or spread moored, each FPSO requires a slightly different configuration. Our designers can modify the system to address these concerns.

Related Technical Information

Offshore Cathodic Protection 101 (Paper)

Abstract: A brief tutorial about the science of cathodic protection as it pertains to the offshore oil & gas industry, complete with diagrams, chemical equations etc.

Cathodic Protection Strategies for FPSO's (Paper)

Abstract: FPSO (Floating Production Storage & Offloading) structures present some interesting cathodic protection challenges. Are they ships or floating production platforms? Is impressed current ...

Corrosion Control for Floating Production Equipment (Paper)

Abstract: The rapid growth in the deep-water production sector worldwide has spawned a whole new generation of floating production equipment ...

Offshore Cathodic Protection System Management (Paper)

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.

Impressed Current Cathodic Protection Retrofits (Paper)

Abstract: It has long been recognized that an impressed current design can offer significant economic advantages over galvanic anodes on certain types of offshore platforms that require a cathodic protection retrofit ...

Cathodic Protection Products for FPSO's