四川的气田在开发过程中,主要是利用气体本身的弹性能量而进行生产的。一个气藏,当第一口井投产后,随着气藏的地质条件、开发井网、生产方式、管理制度、工艺技术等影响,气藏的生产能力发生变化,不断下降,直至枯竭。根据生产气量的变化,一个气藏通常都要经历三个时期,即上升期、稳产期和下降期,构成一个开发模式, The gas fields in Sichuan are mainly produced using the elastic energy of the gas during its development. A gas reservoir, after the first well is put into operation, varies with the geological conditions of gas reservoirs, the well pattern of production, the mode of production, the management system, and the technology. The production capacity of gas reservoirs changes, declining until it is depleted. According to the change of gas production, a gas reservoir usually goes through three periods, that is, ascending period, stable period and descending period, and constitutes a development mode.