Identifying natural gas loss risks and ranking of corrective actions

The aim of this study was to provide a new model for identifying the sources and sources of waste gas in Mahdishahr city gas department and to define corrective measures and prioritize measures to help managers to make appropriate decisions to reduce waste gas. The research method is descriptive-analytical in terms of nature and is applied in terms of purpose. The statistical sample of the research is 10 managers, experts of Semnan Gas Company. Interview tools were used to collect field data. To analyze the collected data, thematic analysis method, FMEA analysis of triple fuzzy number and fuzzy hierarchical analysis were used, respectively. The results showed that 9 of the existing risks of urban gas loss in the study area are the most effective factors in creating these risks. To fix them, a set of corrective measures should be taken, including reducing flagship operations that wear out the ball valve, installing a second valve on the outlet collector valve after the filters, and sending a second discharge valve on the filter collector outlet at stations with this second valve and installing a sample location. Leakage should be considered in the way of filter drain pipe and leakage control. Therefore, paying attention to these results of provincial and city gas companies as an important and defined strategy can be used to identify waste points and define corrective measures for all cases and take care to eliminate them and ensure sufficient effectiveness and adequate measures.