Research on ground technological parameters and gas well flow metering for natural gas underground storage

Gas injection scale, type of compressor, injection pressure, adsorption and filtration technologies of lubricating oil and gas well flow metering techniques were all studied in this paper in order to figure out a suit of surface technical parameters technology for natural gas underground storage. The result indicates that the efficiency of gas driving mode is higher than that of motor driving. Purification technology which combined filtration and separation can meet the demand of high-speed gas injection for underground storage. Ultrasonic flowmeter and elbow flowmeter can realize the measurement both on gas injection and gas production. This system has been applied in La 2 gas injection plant, and was definitely satisfactory in engineering.