Assessment of internal corrosion of pipelines is a complex task, requiring integration of substantial scientific and engineering analyses in multiple disciplines, including thermodynamics, electro-chemistry, fluid dynamics and metallurgy. The authors, over the last ten years, have developed a widely used corrosion prediction model to predict corrosion in aqueous systems. This software system has been extended to corrosion prediction and assessment in pipelines, and provides a rigorous framework to characterize corrosion of pipelines from a stand point of water phase behavior, speciation and fluid dynamic parameters en route to assessment of critical angle for water hold up, and a basis to assess severity of Internal Corrosion. The system promotes both accurate and fast evaluation of pipeline systems in a moderately hilly terrain, and provides a rigorous framework to determine the health of pipeline systems and identify critical locations for corrosion monitoring and inspection.

Subject
Water, Piping, Correlation, Modeling, Predicted corrosion rate, Corrosion prediction, Pipelines, Gas pressure, Liquids, Liquid water, Corrosion modeling, Internal corrosion, Internal corrosion direct assessment
Keywords:
Internal corrosion direct assessment, natural gas transmission pipeline, critical angle, water holdup, ICDA
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2004
Association for Materials Protection and Performance (AMPP)
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