Underground gas storage (UGS) is an important guarantee for natural gas peak regulation and emergency safety supply. It has the characteristics of large injection and production capacity of single well, strong injection and production in short term, and large throughput. Jidong Oilfield UGS is the first offshore gas storage in China, currently completed three injection and two production. In the process of periodic injection and production operation, due to the complicated distribution of underground fluid, the interference between production test Wells, and the slow gas diffusion in the initial stage of gas storage reconstruction, the means to evaluate the gas injection and production capacity of complex single well are still lacking. By systematically sorting out the gas well productivity evaluation method, the productivity test data and the flow and static pressure productivity test data obtained in the field are reevaluated. The following results are formed, which effectively guide the evaluation of gas injection and production capacity of UGS. First, based on the binomial productivity equation derivation theory, the productivity test data of mining field are re-evaluated and the productivity equation of single well gas injection and production is reconstructed. Second, the diagnosis and analysis of abnormal productivity test data are carried out to guide the followup single well productivity test of oil–gas reservoir UGS. Third, fully excavate the dynamic monitoring information of single well injection and production and establish the productivity equation by using “one-point method” to guide the reasonable prediction of single well gas injection and production capacity. Finally, the empirical formula of converting wellhead pressure and bottom hole pressure of gas injection well is formed to assist the quick revision of productivity equation.