HETEROORGANIC COMPOUNDS ARE EFFECTIVE CORROSION INHIBITORS OF METAL EQUIPMENT

Abstract

Oil and gas equipment is operated in very difficult conditions. The reliability and durability of equipment depends on the technical and economic characteristics of structural materials. They are subject to very strict conditions. High demands are placed on the corrosion resistance of structural materials. The service life of metal structures in aggressive and hazardous environments is relatively short due to irreversible corrosion processes of metal equipment. Without the use of special chemical reagents, long-term operation of equipment in the oil and gas industries is impossible. The rapid development of these industries indicates a high demand for these reagents. General methods of combating the physical and chemical destruction of metals include the use of corrosion-resistant metals such as chromium and zinc as protective coatings, alloying of metals, the use of paints and varnishes, as well as special corrosion-resistant products when creating equipment, electrochemical protection, etc. A common method of protection is the use of inhibitors. They provide a reduction in the rate of corrosion process in metals in contact with various aggressive environments. To date, a fairly large number of organic and inorganic substances have been studied that influence the rate of the corrosion process in metals. Organic inhibitors are widely used because they are capable of forming stable protective films on the surface of metals. Highly effective inhibitors of organic origin mainly include substances containing heteroatoms. In this article, based on modern literature data from research by various authors, the task is to identify the most appropriate methods of combating corrosion. The principles of corrosion protection are considered, which made it possible to develop basic provisions for the organization and technology of using heteroorganic inhibitors, taking into account the aggressive effects of corrosive components.