FURTHER VALIDATION OF AN INTERNAL PITTING CORROSION MODEL

摘要

An empirical model was previously developed to predict internal pitting corrosion of oil and gas pipelines. This model is based on experiments carried out in the laboratory at high pressure and high temperature under the operating conditions of the oil and gas pipelines.The inputs are of two kinds: construction (pipe diameter, pipe wall thickness, and pipe inclination) and operational (production rates of oil, water, gas, and solid, temperature, total pressure, partial pressures of H_2S and CO_2, concentrations of sulphate, bicarbonate, and chloride).In this paper this model is further validated using field data obtained from seven operating pipelines.