Trunk oil pipelines are designed for oil transportation, and today it is the most economically advantageous type of transport, it is a complex complex with a hazardous substance in it - oil. The world and domestic experience of oil pipelines operation shows that despite significant achievements in the field of design, construction and operation, it is not possible to completely exclude failures, which result in man-caused accidents, leading to environmental pollution, fires, destruction of facilities, death of workers .