CORROSION MODELING—Conclusion: Field inputs guide internal pitting corrosion model

Laboratory experiments and observation of pit growth rates in six operating fields have led to development of a model to predict internal pitting corrosion of oil and gas pipelines. The inputs required to use the model (construction and operational) are readily available from the field.The model accounts for the statistical nature of pitting corrosion, predicts the growth of internal corrosion pits, considers the variation of pitting corrosion rate, and determines any error in the prediction.The first part of a two article series (OGJ, Nov. 26, 2007, p. 68) examined the pitting corrosion mechanism as well as problems in predicting internal pitting corrosion of oil and gas pipelines, befor...

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