Analysis of Corrosion Defects on Oil Pipeline Surface Using Scanning Electron Microscopy and Soil Thionic and Sulfate-reducing Bacteria Quantification

The authors completed an analysis of corrosion defects on oil pipeline surface by instrumentality of scanning electron microscopy and identified soil thionic and sulfate-reducing bacteria quantity. A surface of samples was studied by using of raster electron microscopy as a preparation for qualitative and quantitative analysis of elemental composition. A quantity of sulfate-reducing and thionic bacteria in samples of soil contiguous to the surface of underground oil pipelines was identified in the Khanty- Mansiysk autonomous region territory (Ugra). A result of this research shows a significant oxidative activity, which accompanied an expressed corrosion process. Microbiological analysis of soil shows an existence of thionic bacteria and an absence of sulfate-reducing bacteria. Microorganisms existing in soil induce the corrosion of pipeline steel. Using scanning electron microscopy in combination with finding of quantitative specification of thionic and sulfate-reducing bacteria in soils allows the authors to study the nature of corrosive surface of the oil pipelines and to evaluate an extension degree of biocorrosion in complex.

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  • English

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  • Accession Number: 01609838
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2016 10:40AM