CAUSES AND MECHANISMS OF LOCAL CORROSION IN OIL-FIELD PIPELINES

摘要

We study the causes and reveal the mechanism of local corrosion of carbon steels in the presence of high amounts of water in the extracted oil, present the results of evaluation of the index of activity and the quantitative level of infection of oil-field pipelines with microorganisms, and consider the mechanism of development of corrosion damage to the body of the pipe in the form of pitting. The most probable chemical reactions of local corrosion are analyzed.