Influence of CO₂/H₂S Partial Pressure Ratio on Corrosion Behavior of BG90SS Material

The influence of CO2/H2S partial pressure ratio on the corrosion behavior of BG90SS was studied bysimulating the corrosion environment of Amu Daryagas field with a high pressure and high temperature autoclave.The results show that with the decrease of CO2/H2S partial pressure ratio,the material corrosion rate decreased.From the analysis of corrosion product film,mackinawite was the major corrosion product.This indicates that in thiscorrosive environment the corrosion behavior of BG90SS material is controlled by H2S.