Abstract
P110 steel, widely utilized in oil and gas operations, is renowned for its robust mechanical properties, satisfactory corrosion resistance, and significant economic advantages. This study aims to investigate the influence of acetic acid on the crevice corrosion behavior of P110 steel in simulated oilfield produced water. A comprehensive range of techniques was employed for this analysis, including dynamic potential polarization curves, electrochemical impedance spectroscopy (EIS), and scanning electron microscopy. The results highlight that the introduction of acetic acid significantly compromises the resistance of P110 steel to crevice corrosion. As the concentration of acetic acid increases, a corresponding escalation in corrosion products outside the crevice is observed, forming a protective layer on the surface of the P110 steel beyond the crevice. These insights provide a theoretical basis for enhancing the safety performance of oil well tubing, reducing operational hazards, and mitigating environmental impact.
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