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

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−, HCO3−, Ca2+, Mg2+ and pH on the corrosion of J55 steel were studied. U...

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Bibliographic Details
Published in:Sustainability 2023-02, Vol.15 (4), p.3355
Main Authors: Li, Wangdong, Jing, Jiaqiang, Sun, Jie, Wang, Shuai, Zhang, Feng, Wang, Hai
Format: Article
Language:English
Subjects:
Calcium ions
Carbon steel
Chemical inhibitors
Corrosion
Corrosion effects
Corrosion inhibitors
Corrosion prevention
Corrosion rate
Corrosion tests
Crude oil
Electrochemistry
Ethanol
Gas industry
Gases
Inhibitors
Investigations
Magnesium
Oil wells
Permeability
Petroleum production
Steel
Steel pipes
Sustainability
Temperature effects
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Summary: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−, HCO3−, Ca2+, Mg2+ 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−, Ca2+ and Mg2+ 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.
ISSN:2071-1050
2071-1050
DOI:10.3390/su15043355