Modeling of electromagnetic fields of pipelines cathodic protection systems in horizontally layered medium

##plugins.themes.bootstrap3.article.main##

##plugins.themes.bootstrap3.article.sidebar##

Published Mar 31, 2020
Vladimir N. Krizsky Pavel N. Aleksandrov Alexey A. Kovalskii Sergey V. Viktorov

Abstract

Design of cathodic protection systems of the trunk pipeline is regulated by current standards, based on the condition of uniformity and constancy of the electric conductivity of the multilayered half-space surrounding the pipeline. The current mathematical models of such systems also use an average value of the medium electric conductivity, which does not fully reflect the actual characteristics of the soil, in which the pipeline is laid. The authors present a method that accounts for the thickness and electrical conductivity of individual beds in a vertically-inhomogeneous, horizontally layered medium (the most practically appropriate case). Using method of computational experiment, the authors showed the importance of accounting for the effect of the medium layers structure and electrical resistivity on the protective voltage of the electric current in the cathodic protection system for underground trunk pipeline and studied the magnetic field sensitivity dependence on the insulation resistance of the pipeline defect-containing segments and on the altitude of data acquisition.

How to Cite

1.
Krizsky VN, Aleksandrov PN, Kovalskii AA, Viktorov SV. Modeling of electromagnetic fields of pipelines cathodic protection systems in horizontally layered medium. PST [Internet]. 2020Mar.31 [cited 2020Jul.8];4(1(3):52-1. Available from: https://pipeline-science.com/index.php/PST/article/view/116

Downloads

Download data is not yet available.
Abstract 8 | PDF file Downloads 6

##plugins.themes.bootstrap3.article.details##

Keywords

piecewise homogeneous space, horizontally layered space, cathodic protection, mathematic modeling, electromagnetic field

References
[1] Tikhonov A. N., Arsenin V. Y. Methods of solving ill-posed problems. 3rd edition, revised. Moscow: Nauka Publ., Chief Editorial Board for Physics and Mathematics Literature; 1986. 288 p. (In Russ.)
[2] Krizsky V. N., Viktorov S. V., Belyaeva M. B. Mathematical modeling of geoelectric fields in piecewise homogeneous quasi-three-dimensional media. Sterlitamak: Sterlitamak Branch of Bashkir State University Publ.; 2015. 103 p. (In Russ.)
[3] Tkachenko V. N. Calculation of electrochemical protection for pipeline networks by discretization technique. Elektrichestvo Journal. 2007(12):41–47. (In Russ.)
[4] Bolotnov A. M., Glazov N. N., Glazov N. P., Shamshetdinov K. L., Kiselev V. D. Mathematical model and algorithm for computing the electric field of pipeline cathodic protection with extended anodes. Physicokhimiya poverkhnosti i zashchita materialov = Protection of Metals and Physical Chemistry of Surfaces. 2008;44(4):408–411. (In Russ.)
[5] Filatov V. A., Khogoev E. A. Calculation of the field of a point source of direct current in a layered medium. Novosibirsk, 1987. 13 p. (In Russ.)
[6] Landau L. D., Lifshits E. M. Course of Theoretical Physics: 10 volume series. Vol. 2. The field theory. 3rd edition, revised. Moscow: Nauka Publ.; 1988. 512 p. (In Russ.)
Section
Original Work