CO2 Top of the Line Corrosion in Presence of Acetic Acid - a Parametric Study

Under stratified flow and dewing conditions, internal corrosion can occur at the top of horizontal pipelines where continuous injection of corrosion inhibitors does not have a mitigating effect. This research work presents an experimental study of five parameters identified to have a significant influence of Top of the Line Corrosion: the partial pressure of CO₂, the condensation rate, the gas temperature, the organic acid concentration and the gas velocity.  A comprehensive analysis on the effect of each of these five parameters on the type of corrosion product film formed at the top and bottom of the line is performed as well.