Abstract: Because the poor repetition, high confining pressure and system pressure, fairly high error, high injection rate and actual moving speed of gas and water contacting face in the formation lie in the long core experiment on injectionproduction rate sensibility, short core is used in the physical experiment and the experiments on the sensibility of gas injection rate and production rate finished, the general concept about the gas injection rate and storage capaticy, gas production rate and efficiency of gas by waterflood is obtained which have great meanings to layout energy and gas transportation from west to east in our country.

Key words: underground natural gas storage, gas injection rate, gas production rate, storage capacity, short core experiment