METAL CORROSION DESTRUCTION OF OIL AND GAS PIPELINES DURING OPERATION AND LABORATORY TESTS

Corrosion failure of oil grade pipes is a big problem for the mining industry. The corrosion process depends on many variables. External factors characterize the operating conditions: corrosive gases content, oxygen content, total system pressure, temperature, water level, medium pH, etc. Internal factors characterize the quality of the pipes used: chemical composition, microstructure, and condition of pipe inner surface. Reducing the negative impact of all the above factors is a complex task, including measures for selecting materials for specific operating conditions, as well as conducting corrosion monitoring, which allows to control and predict the rate of corrosion, service life, determine the effectiveness, efficiency and feasibility of using the applied anti-corrosion measures. The article provides an overview of the main mechanisms of metal destruction of oil and gas pipelines, information about methods of their laboratory modeling and monitoring during operation.