Abstract: The paper discusses the thought and method of application of numerical simulation technology in residual gas of gas cap reservoir. In accordance with the specific property of southern Pucheng gas cap reservoir with oil hoop, it has adopted VIP5.0 edition numerical simulator of U. S. Landmark company for simulation research. With the preparation of parameters, static matching of reserves and dynamic matching of the performance history and saturation, it has simulated the quantities of residual reserve in various internals of sand group 1,2 in the upper position of Es₂ member in southern Pucheng and the distribution of gas saturation in different stages. Combining visual technology,it has describes vividly the change regularity of residual gas in Pucheng gas cap and has provided important basis for further exploration of residual gas and has achieved good results.

Key words: gas cap, numerical simulation, residual gas, matching, saturation, Pucheng oil and gas fields

摘要： 讨论了数值模拟技术在气顶气藏剩余气研究中的思路和方法,针对濮城南区带油环气顶气藏的特点,采用美国Landmark公司VIP5.0版本数值模拟软件包进行模拟研究,通过参数准备,静态储量拟合、动态历史及饱和度拟合,模拟出淮城南区Ss₂^上油层1、2砂岩组各小层剩余储量及不同阶段含气饱和度分布,结合可视性技术形象描述了淮城气顶剩余气变化规律,为下一步剩余气挖潜提供了重要依据,取得了较好的效果.

关键词: 气顶, 数值模拟, 剩余气, 拟合, 饱和度, 濮城油气田