STUDY OF THE REASONS FOR CORROSION OF METALLIC OIL

Pipeline transport is considered to be the most efficient and economically feasible type, unlike rail, land or other types of transportation. Transported products are usually petroleum products with various physical and mechanical properties that can have various negative effects on the pipeline material, thereby causing corrosion, wear, leakage and emissions. The relevance of research in this direction is due to the fact that due to the relatively complex composition of Kazakhstan's oils during oil pumping, triboelectric effects at the phase interface cause the occurrence of electric charges, which lead to an increase in the efficiency of chemical reactions that cause corrosion of the pipeline material. Therefore, it is necessary to develop specific ways to protect oil pipelines from damage caused by metal corrosion. IR spectroscopic analysis of oil shows the presence of various types of hydrocarbons. Based on the oil dispersal of JSC Ozenmunaigas, the complexity in the molecular composition of oil causes electrical effects that lead to an increase in the corrosion rate. All this should be taken into account when developing corrosion protection. In the process of transportation in the volume of oil and petroleum products, due to the complex microstructure and certain heterogeneity of the macrostructure, electrostatic charges can be formed. Since electrification and heat generation occur during tribolytic effects, these processes require refinement of heat transfer processes at the micro-macro level. In this case, the potential difference between individual sections of the liquid volume can be quite large. Chemical and physico-chemical methods of instrumental analysis were used in the work. In this work, experimental values of the specific electrical conductivity of oil and petroleum products were obtained under laboratory conditions, which allow us to judge their dielectric nature. In this work, the triboelectric effect was studied at the site of the boundary of metals and organic liquids (oil, fuel oil, etc.) to determine their effect on the corrosion of pipeline metals. and the values of electrical conductivity of oils and petroleum products are established.

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