“CAUSES AND MECHANISMS OF LOCALIZED CORROSION OF MILD STEEL IN CO2/H2S AQUEOUS ENVIRONMENTS”
Produced oil and gas are always accompanied by some water and varying amounts of carbon dioxide and in some cases hydrogen sulfide. These may affect the integrity of mild steel. This has been known for over 100 years, yet internal corrosion of pipelines and other facilities made from mild steel still represents a challenge for the oil and gas industry. This presentation summarizes the current degree of understanding of localized corrosion of mild steel exposed to CO2 and H2S aqueous environments. The basic physicochemical phenomena underlying uniform CO2 and H2S corrosion are firstly described and then the presentation moves to more complicated scenarios leading to localized attack.
Srdjan Nesic: Russ Professor of Chemical Engineering and Director of the Institute for Corrosion and Multiphase Flow Technology, Ohio University, Athens, Ohio, USA.