Co2 Corrosion of Carbon Steel - From Mechanistic to Empirical Modelling

Many different models for C02 corrosion are used by engineers in the oil and gas industry. Some are described in the open literature and only those are covered by this review. In order to classify the CO2 corrosion models, we have arbitrarily decided to group them into three categories based on how firmly they are grounded in theory: mechanistic, semi-empirical and empirical models. A few most representative examples are discussed from each group. The performance of four different models covering all three groups is tested by comparing the predictions with a large experimental C0 2 corrosion database.