储气库的储量估算

在设计地下储气库时，储气库的储气量是设计工程师们考虑的重要因素之一。在现有气藏的理论指导下，针对计算储气库的动态储量的方法（物质平衡法、产量递减分析法、不稳定试井分析法等）所存在的局限性，提出了一种适用一般情况的新方法：首先从分析储气库中盖层的岩石应力出发，计算出岩石的破裂压力（即为储气库储存天然气时的极限压力），而储气库的最大储气压力是极限压力的0.7~0.8倍，从而确定储气库的最大储量以及储气库的动态储量，并以实例验证该方法的可行性，为确定储气库的储量提供了一种新思路。

GAS STORAGE STOREHOUSE RESERVES ESTIMATE

The reserve in underground gas storage is one of the key factors enginners take into consideration in designing the gas storage. Guided by exsting gas reservoir theory, a new and suitable for general condition method is put forward aimed at the limitation of calculating dynamic reserve method, including materialbalance method, productivity decline method and unstable well test analitical method, first, from analyzing the lithologic stress of cover rocks in the gas storage, the breaking pressure of the rocks is calculated (i.e., the limit pressure when the storage contains gas), the maximum storing pressure of the storage is 0.7～0.8 times of limit pressure, so the maximum reserve and dynamic reserve of the storage can be determined, case study indicates the method is operable, a new idea is presented to determine the reserve of the storage.