关键词: 气顶, 数值模拟, 剩余气, 拟合, 饱和度, 濮城油气田

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