The problem of formation of high molecular weight organic deposits (asphaltene-resin-paraffin deposits – ARPD) in well equipment, technological elements of oil gathering and treatment system is one of the most urgent in oil production and entails an increase in current operating costs of oil producing enterprises. When researching, designing and further implementation of technologies for prevention and removal of ARPD for deposits and fields at a late stage of development, it is necessary to take into account the uncertainty of the conditions of technology application due to increasing heterogeneity of the reservoir system. Application of protective coatings and materials provides a comprehensive solution to the problems of oil production, including protection from corrosion and erosion wear, reduction of hydraulic resistance, reduction of mechanical impurities in the pumped fluid. In order to determine the main factors determining the protective properties of coatings and materials against the formation of high molecular weight organic deposits (ARPD), experimental studies were carried out. Coatings and oil samples with different characteristics were used for the research. As a result, it was shown that the formation of deposits is determined by the processes of intermolecular interaction and depends on both the composition and properties of the surface and the composition of oil, while low surface roughness is not the main factor determining its protective properties. Taking into account that the use of coating systems and materials provides a comprehensive solution to technological problems, for further development and improvement of the efficiency of protective coatings application it is necessary to expand not only research in this direction, but also the list of normative characteristics characterizing the quality and operational reliability of protective coatings.
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