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Corrosion of the Internal Wall of a Field Gas Pipeline

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We have determined the causes of depressurization of a pipeline of diameter 114.30 mm and wall thickness 6.02 mm (pipe steel of category X60), which transports natural gas from the gas field to the gathering point. We have performed spectral, electrochemical, and metallographic investigations of a metal fragment from the damaged pipe as well as chemical analysis of the corrosion products on the wall internal surface (X-ray microspectral analysis). Polarization measurements have been carried out in deaerated solutions and those aerated by air oxygen, having different salt content. It has been shown that, with increase in the salt content, the corrosion resistance of pipe steel decreases, and the corrosion rate increases from 0.06 to 0.89 A/cm2 under aerated conditions and from 0.16 to 1.48 A/cm2 under deaerated.

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References

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Authors and Affiliations

  1. Paton Institute of Electric Welding, Ukrainian National Academy of Sciences, Kyiv, Ukraine

    S. Yu. Kovalenko, A. O. Rybakov, A. V. Klymenko & L. H. Shytova

Authors
  1. S. Yu. Kovalenko
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  2. A. O. Rybakov
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  3. A. V. Klymenko
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  4. L. H. Shytova
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Corresponding author

Correspondence to A. V. Klymenko.

Additional information

Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol.48, No.2, pp.97–102, March–April, 2012.

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Kovalenko, S.Y., Rybakov, A.O., Klymenko, A.V. et al. Corrosion of the Internal Wall of a Field Gas Pipeline. Mater Sci 48, 225–230 (2012). https://doi.org/10.1007/s11003-012-9496-8

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  • DOI: https://doi.org/10.1007/s11003-012-9496-8

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