Technical Paper



Improvements in Offshore Pipeline Cathodic Protection and Anode Life Extension

by Jim Britton (2006)

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Abstract


New deep-water discoveries combined with current high energy prices have given much of the world's aging offshore infrastructure a new lease on life. Offshore pipelines in particular are at the highest risk of catastrophic external corrosion failure if their cathodic protection systems are allowed to fall into disrepair. Newly developed survey methods, combined with innovative design software and low cost hardware, are helping take the pain out of asset life extension for many operators worldwide. This paper briefly presents some case histories and discusses the methods used and the overall strategy driving them. The deep-water revolution is also presenting new challenges in offshore pipelining. Methods combining cathodic protection and simplified life-cycle monitoring exist; they will be touched on in this paper.

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