常规试井分析理论把井筒储集系数视为一个常数，这虽然简化了模型，但却给许多试井早期数据的分析带来困难，作者较详细地探讨、总结了试井分析中的变井储问题，并且研究了在有效井径模型中，Ｆｉａｒ模型和误差函数变井储模型的应用，有效地解决了真实井径模型中当表皮系数为负值时计算发散的困难。还讨论了地层压力的计算受变井储的影响。 Conventional well testing theory treats the wellbore storage coefficient as a constant, which, although simplifying the model, presents difficulties in the analysis of many early well test data. The author explores in more detail the variability in well testing Storage problem, and studied the application of Fiar model and error function variable well storage model in the effective caliper model, which effectively solves the difficulty of calculating divergence when the skin factor is negative in the real caliper model. Also discussed are the effects of reservoir pressure changes on the formation pressure calculation.