The paper analyzes the existing methods for leak detection and monitoring the main gas pipeline sections. An extended classification of methods is presented based on the additional parameters: operating mode (steady-state, non-steady-state) and type of leak detection (presence detection, location identification, volume determination).
An effective approach to solving the problem of reducing man-made hazards is the use of specialized systems for forecasting and minimizing risks. The theoretical basis for hazard assessment is probabilistic safety analysis (IAB). The most common method of assessing the danger and accident is the development of formalized models of events is the use of logical-probabilistic models "failure tree" (FTA) and "event tree" (ETA). These methods are widely used in the world to analyze the risk of accidents at facilities with increased levels of danger.
Investigations on the development of a basic technology of the shielded-gas mechanized arc welding of strengthening structural elements which are used in repair of main gas pipelines were carried out.