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碳酸盐岩储集层饱和度的计算一直是测井界亟待解决的难题,它直接关系到储层流体性质、储量规模等方面的评价.为了认识目前碳酸盐岩测井饱和度解释模型的研究现状,在参阅国内外相关文献的基础上,将现今针对碳酸盐岩储集层的含水饱和度模型分为六类:基于经典阿尔奇公式的经验性扩展、基于孔隙类型的多重孔隙结构的饱和度模型、基于孔隙尺寸的多重孔隙结构的饱和度模型、基于岩石导电效率理论的饱和度模型、基于网络导电理论的饱和度模型和基于J函数的饱和度模型.这些饱和度解释模型在应用时均存在潜在的假设和使用条件,因此为了能够建立出更加符合地质情况的饱和度解释模型,今后还需从理论数值模拟、导电机理、岩石物理实验等方面深入研究,而基于数字岩芯的孔隙网络导电规律研究是重要的研究方向.
The calculation of reservoir saturation has always been an urgent problem to be solved in the logging industry, which is directly related to the evaluation of fluid properties and reserves of carbonate reservoirs.In order to understand the current interpretation model of log saturation Based on the relevant literature home and abroad, the current water saturation models for carbonate reservoirs are divided into six categories: empirical expansion based on the classical Archie formula, multiple pores based on pore types Saturation model based on pore size, saturation model based on rock conductivity efficiency theory, saturation model based on network conductivity theory, and saturation model based on J function, etc. These saturation interpretation models Therefore, in order to be able to establish a saturation interpretation model more in line with the geological conditions, it is necessary to do further research from the aspects of theoretical numerical simulation, conducting mechanism and rock physics experiment in the future, and based on digital rock The study on the conduction law of the core pore network is an important research direction.