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Investigation of the Corrosion Characteristics and Corrosion Inhibitor Action on J55 Steel in Produced Water

Author

Listed:
  • Wangdong Li

    (School of Oil & Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
    Shaanxi Yanchang Petroleum (Group) Co., Ltd., Xi’an 710065, China)

  • Jiaqiang Jing

    (School of Oil & Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
    Oil & Gas Fire Protection Key Laboratory of Sichuan Province, Chengdu 611731, China)

  • Jie Sun

    (School of Oil & Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
    Oil & Gas Fire Protection Key Laboratory of Sichuan Province, Chengdu 611731, China)

  • Shuai Wang

    (School of Petroleum and Environmental Engineering, Yan’an University, Yan’an 716000, China)

  • Feng Zhang

    (Engineering Technology Research Institute, Xinjiang Oilfield Company, Karamay 834000, China)

  • Hai Wang

    (Xianyang Natural Gas Town Gasification Co., Ltd., Xianyang 712000, China)

Abstract

The corrosion behaviour of J55 steel in typical high-water-cut oil wells and the inhibition effects of different types of corrosion inhibitors were investigated. Using electrochemical experiments, the effects of temperature, Cl − , HCO 3 − , Ca 2+ , Mg 2+ and pH on the corrosion of J55 steel were studied. Under experimental conditions, the corrosion rate slowed with increasing pH value when the temperature increased from 35 °C to 70 °C. The corrosion rate also increased first and then decreased with increasing Cl − , Ca 2+ and Mg 2+ ion concentrations, which notably affected the distribution of corrosion pits on the surfaces of the steel. The protection performances of various corrosion inhibitors and corrosion products were evaluated through electrochemical measurements. The results showed that the CT-2, UT2-2 and YC-2 inhibitors had obvious effects on the corrosion prevention of the J55 steel. In particular, the corrosion inhibition efficiencies of the three kinds of carbon steel were remarkable and exceeded 84% when the UT2-2 concentration reached 0.18 g/L.

Suggested Citation

  • Wangdong Li & Jiaqiang Jing & Jie Sun & Shuai Wang & Feng Zhang & Hai Wang, 2023. "Investigation of the Corrosion Characteristics and Corrosion Inhibitor Action on J55 Steel in Produced Water," Sustainability, MDPI, vol. 15(4), pages 1-24, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:4:p:3355-:d:1065923
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