Abstract: Deep gas wells in the East China Sea are prone to stop producing. Large wellbore pressure loss and high process pressure are important reasons. The production characteristics of abnormal high pressure gas reservoirs in the East China Sea and the recovery of dynamic reserves can provide a basis for the dynamic analysis of this type of gas reservoirs and the potential of follow-up measures. Taking X gas well as an example, this paper analyzes the production characteristics of abnormal high pressure gas reservoirs with constant volume. Then analyzes and discusses the effect of field measures after stopping producing. The results show that rock pore expansion of an abnormal high pressure gas reservoir in the East China Sea is the main energy source in the early stage of production, accounting for about 70%. This type of gas reservoir has sufficient formation energy and higher recovery rate than conventional gas reservoir. When the gas well is unable to gusher, some measures such as blowout or depressurization can be taken to improve the recovery. The application effect is good, which can provide a basis for the development of similar gas reservoirs.