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水驱气藏开发在我国气田开发中占有重要位置，本文系统介绍了水驱气藏的识别、水侵量的确定及其计算方法。根据物质平衡原理，着重介绍了几种用于水侵计算的模型或解析方程组，包括Ｓｃｈｉｌｔｈａｉｓ稳态模型、ＶａｎＥｖｅｒｄｉｎｇｅｎ＆Ｈｕｒｓｔ非稳态边水驱模型和Ｆｅｔｋｏｖｉｃｈ拟稳态模型。这对于水驱气藏的开发具有重要的参考价值和指导意义。
The development of water-driven gas reservoirs occupies an important position in the development of gas fields in our country. This paper systematically introduces the identification of water-purging gas reservoirs and the determination of water influx and its calculation method. According to the principle of material balance, several models or analytical equations for calculating water intrusion are emphatically introduced, including Schilthais steady-state model, Van Everdingen & Hurst unsteady water-driven model and Fetkovich quasi-steady state model. This has important reference value and guiding significance for the development of water-purging gas reservoirs.