In August / September 2009, the cathodic protection (CP) system on a spar hull in the Gulf of Mexico was retrofitted. The original cathodic protection system on the hull comprised approximately 300 sacrificial aluminum anodes. The spar required a life extension significantly in excess of the original 15-year service life, including the CP system. At the request of the operator, a 15-year life extension impressed current cathodic protection (ICCP) system was designed, supplied and commissioned. Ongoing CP monitoring and system performance will also be discussed.

Subject
Electric current, Impressed current cathodic protection, Cathodic protection, Tubes, Seabed, Installation, Cables, Hull, Rectifiers, Corrosion protection interference, Blistering, Electrode potential, Anodes
Keywords:
impressed current, cathodic protection, ICCP, CP, spar, platform, floating, RetroBuoy, retrofit
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2011
Association for Materials Protection and Performance (AMPP)
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