PIPELINE INTEGRITY—1: Accurate corrosion modeling improves reliability estimations

Francisco Caleyo Alma Valor Victoria Venegas Jose Hiram Espina Hernandez Julio C. Velazquez Jose Manuel Hallen ESIQIE, Instituto Politecnico Nacional Mexico City Researchers derived five corrosion rate distributions from different pit growth models and used them to perform reliability analyses of underground pipelines from synthetic and real-life data. Comparing the results of these analyses showed that considering the age, depth, and time-evolution of corrosion pits is critical to corrosion rate modeling and reliability estimations. This first of two articles establishes the methodology for developing these models and examines each. The second, concluding article, compares the models' pe...

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