Influence of Temperature on Corrosion Behavior of J55 Tubing Steel in CO<sub>2</sub> Flooding Environment

YIN Zhi-fu; GU Jing-hua; YANG Zhi-gang; WEI Yan-lin; WANG Ke

Corrosion & Protection > 2013 > 34(5): 399-402.

YIN Zhi-fu, GU Jing-hua, YANG Zhi-gang, WEI Yan-lin, WANG Ke. Influence of Temperature on Corrosion Behavior of J55 Tubing Steel in CO₂ Flooding Environment[J]. Corrosion & Protection, 2013, 34(5): 399-402.

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Influence of Temperature on Corrosion Behavior of J55 Tubing Steel in CO₂ Flooding Environment

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Received Date: November 27, 2012

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The corrosion behavior and the inhibition performance of two imidazoline inhibitors were investigated at various temperatures using a high pressure autoclave in simulated CO2 flooding environments. Corrosion rates and inhibition efficiencies of the samples were calculated, and the surface morphologies of corrosion product films were analyzed. The concentrations of ΣFe and HCO-3 in the produced water after the experiments were also analyzed. The results indicated that the corrosion rate of J55 steel increased with temperature, and the imidazoline inhibitors had good inhibition efficiency to CO2 corrosion, and the modified imidazoline inhibitor had superior performance. In addition, the concentration of ΣFe was lower than that for the blank sample, and the concentration of HCO3- slightly decreased in comparison with that under blank experimental condition.
- CO2 corrosion,
- temperature,
- imidazoline inhibitor,
- product film,
- water analysis

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Influence of Temperature on Corrosion Behavior of J55 Tubing Steel in CO₂ Flooding Environment