Open AccessDevelopment of Calculation Model of the Distribution of Protective Currents of Gas Pipeline Electrochemical Protection System in Permafrost Soils
Author(s) -
S. A. Shkulov,
I. V. Shishkin,
A. S. Kuzbozhev,
I. N. Birillo,
P. A. Kuzbozhev
Publication year - 2021
Publication title -
tehnologii nefti i gaza
Language(s) - English
Resource type - Journals
ISSN - 1815-2600
DOI - 10.32935/1815-2600-2021-133-2-50-54
Subject(s) - permafrost , soil water , pipeline transport , environmental science , soil science , thermal conduction , homogeneous , grid , geotechnical engineering , geology , materials science , thermodynamics , environmental engineering , physics , oceanography , composite material , geodesy
Clarification of parameters of the distribution of protective currents in permafrost soils is an urgent issue. The article describes a grid model of the soil, which differs from the generally accepted homogeneous model. Grid model of soil imitates various conditions of permafrost. Calculation model allows us to estimate parameters of the electrochemical protection of gas pipelines, taking into account the inequality of the parameters of the electrical conductivity of soils and also the transition resistance of the protective coating of the pipes along the length of the section. The model also makes it possible to estimate seasonal changes in the propagation conditions of protection currents due to periodic thawing and freezing of the soil in the conduction layer.