物质平衡法在水侵气藏中的新应用

New Application of Material Balance Method to Water-encroached Gas Reservoir

目前常采用建立数学模型的方法计算水侵气藏的储量和水侵量,涉及过多的不确定性参数且计算过程繁琐。通过对物质平衡方程的推导提出了一种新的求解气藏储量和水侵量的方法,新方法所需参数容易获取,计算过程简便,且实例中的计算结果与传统方法的计算结果较为吻合,从而证明了新方法的可行性。

At present, the reserves and influx rate of the water-encroached gas reservoir are often calculated by mathematical model, which concerns so many uncertain parameters and has a complicated computing process. In this paper, based on the material balance equation, a new method is put forward to calculate the reserves and influx rate. It’s easy to obtain the required parameters through a simple computation. The computed result is identical with that from the conventional method. Therefore, the new method is feasible.