This paper presents an overview of the results of the application of metal-sprayed coatings to protect the outer surface of electric submersible pumps (ESP) from the effects of complicating factors in oil wells. The metal-sprayed coating is applied using hot spraying, and the choice of the method is based on the chemical composition, the materials that are used, and the properties of the finished coating. The most common coatings on the Russian market include monel and austenitic stainless-steel alloys applied by arc metallization or high velocity spraying. Traditional coatings obtained by thermal spraying are characterized by an insufficiently high level of physical, mechanical, and chemical properties. Studies of the abnormal cases of submersible electric motors (SEMs) have shown that the most significant disadvantages of the applied coatings include insufficient resistance to mechanical shock, as well as abrasive wear; higher electrochemical potential in relation to the base metal; violations of the application technology; and significant coating porosity. One of the main reasons for the observed disadvantages is a limited number of traditionally used methods and materials. To solve the problem of using protective SEM coatings and significantly increase their properties, service life, and economic efficiency, it is necessary to use modern scientific achievements in the development of coatings to protect metal surfaces from wear and corrosion, namely, to expand the number of coating methods and materials, work out a methodology for assessing the quality of coatings, and develop a methodology for assessing the economic efficiency of protective coatings. Solving these problems will allow us to make a reasonable technical and economic choice of a specific SEM coating for specific operating conditions.

本文概述了应用金属喷涂涂料保护电动潜水泵（ESP）外表面不受油井复杂因素影响的结果。金属喷涂的涂层是通过热喷涂来施加的，方法的选择取决于化学成分，所使用的材料以及最终涂层的性能。俄罗斯市场上最常见的涂料包括通过电弧金属化或高速喷涂施加的蒙乃尔合金和奥氏体不锈钢合金。通过热喷涂获得的传统涂层的特征在于物理，机械和化学性质的水平不足。对潜水式电动机（SEM）异常情况的研究表明，所施加涂层的最主要缺点包括对机械冲击的抵抗力不足以及磨料磨损。相对于贱金属更高的电化学势；违反应用技术；和显着的涂层孔隙率。观察到的缺点的主要原因之一是数量有限的传统使用的方法和材料。为了解决使用保护性SEM涂层并显着提高其性能，使用寿命和经济效益的问题，有必要在涂层的开发中运用现代科学成果来保护金属表面免于磨损和腐蚀，即扩大数量涂覆方法和材料 制定评估涂层质量的方法，并开发评估保护涂层经济效益的方法。解决这些问题将使我们能够针对特定的操作条件对特定的SEM涂层做出合理的技术和经济选择。