Analysis of methods of natural gas technical loss determination and technical loss norms in gas supply network

Abstract

In modern times, the role of energy resources is very large. One of the important energy resources is natural gas. The biggest advantage of using natural gas as a fuel is its high heat capacity and complete combustion without the formation of harmful substances. The process of natural gas distribution in the gas supply network is observed with gas loss. This is an objective, natural situation and creates a number of difficulties for natural gas enterprises. The article focuses on gas consumption in technological processes in the gas supply network, gas purges from pipelines during pipeline repair works, gas flushing out from the pipeline and determination of gas technological losses during the removal of air from the pipeline. Determination of gas losses caused by non-hermeticity of external gas pipelines and equipment, gas pressure regulation station (GPRS), cabinet-type gas control points (GCP), universal pressure regulator (UPR) and gas losses occurring during repairing of other technological equipment are discussed. Also, the determination of technical losses of natural gas at meters, sampling nodes, safety valves, gas distribution stations (GDS) (from gas losses during the management of shut-off valves, during purge of process instrumentation and automatics, when taking gas samples, during purges proses of safety valves, apparatus and pulse lines) is discussed. The article describes the principle of formation of technical losses in the gas supply network. Technical loss sources of natural gas in the process of gas supply, methods of calculating loss norms, the amount of small loss of which is determined separately for each specified loss source, are mentioned. Keywords: gas supply; natural gas; technical losses; pipeline; GPRS; GCP; UPR; gas meters; safety valves; gas distribution station.