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气藏驱动类型的确定是气藏储量计算和开发方案编制的基础。我国目前常用的方法———视地层压力法和水侵体积系数法对水驱作用的敏感性较差，往往造成对驱动类型的误判，故利用早期生产动态资料准确判断气藏驱动类型一直是油藏工程师的一个难题。文章提出了一种可用于气藏开发初期，在较小采出程度条件下，识别气藏驱动类型的新方法———视地质储量法，它不仅适用于正常的压力系统气藏，而且还适用于异常高压系统气藏。通过大量的应用实例证明：该方法对气藏的水驱作用十分敏感，其判别准确率明显高于传统的方法。
The determination of gas reservoir driving type is the basis of gas reservoir reserves calculation and development plan. At present, the commonly used methods in our country, such as the formation pressure method and the water intrusion volume coefficient method, are less sensitive to water flooding and often result in misjudgment of the driving type. Therefore, it is always accurate to judge the driving type of gas reservoirs by using the early production dynamic data Is a reservoir engineer’s problem. This paper presents a new method which can be used to identify the driving type of gas reservoirs in the early stage of gas reservoir development under the condition of a small production level - as the method of geological reserves, which not only applies to normal pressure system gas reservoirs but also Suitable for abnormal high pressure system gas reservoir. Through a large number of application examples, it is proved that this method is very sensitive to the waterflooding effect of gas reservoirs and its accuracy is higher than the traditional method.