Effects of Elemental Sulfur on Corrosion Behavior of Sulfur-resistant Casing Steel P110SS

The effects of sulfur on corrosion behavior including electrochemical corrosion and sulfide stress cracking of P110SS steel in oilfield environment with H2S/CO2 were investigated using an antoclowe as simulation device. The corrosion rate and corrosion severity of P110SS steel increased significantly owing to the solution containing elemental sulfur. Though sulfide stress cracking did not occur on P110SS steel samples, electrochemical corrosion seriously occurred and many part of samples lost due to elemental sulfur.