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ISSN 0474-8662. Information Extraction and Processing. 2020. Issue 48 (124)
Determination of corrosion rate in places of insulation damage of underground pipelines
Dzhala R.M.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
Verbenets’ B.Ya.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
Dzhala V.R.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
Lozovan V.P.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
Senyuk O.I.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
https://doi.org/10.15407/vidbir2020.48.035
Keywords: electric currents, potentials, underground pipelines, damage insulation, transition resistance, cathodic protection, corrosion, measuring, diagnostics.
Cite as: Dzhala R.M., Verbenets’ B.Ya., Dzhala V.R., Lozovan V.P., Senyuk O.I. Determination of corrosion rate in places of insulation damage of underground pipelines. Information Extraction and Processing. 2020, 48(124), 35-42 DOI:https://doi.org/10.15407/vidbir2020.48.035
Abstract
The electromagnetic method of non-contact current measurements makes it possible to quickly monitor the state of passive (insulating coatings) and active (cathodic polarization) corrosion protection of underground pipelines (UP); detect places of unsatisfactory insulation, determine the transient resistance and its components (resistances of soil, insulating layer, polarization) in different sections, the area of insulation damage, the current distribution of cathodic protection of UP. In combination with contact measurements of direct and alternating voltages, ohmic and polarization potentials, it is possible to determine the polarization resistance and estimate the corrosion rate.
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