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对于地质条件比较差,储层特征复杂的油藏,以岩心和测井分析资料为基础,从微观和宏观入手,深入分析储层特征复杂的机理,油水关系复杂的成因。在此基础上,建立不同储层地球物理特征不同响应特征,分析影响原始含油饱和度的各类因素,进而通过实际工作验证,找到尽量消除各类影响计算精度的方法,实现在复杂油层储量评价中,尽可能提高原始含油饱和度的精度。
For reservoirs with relatively poor geological conditions and complex reservoir characteristics, based on core and well logging analysis data, the mechanism of complex reservoir characteristics and the complicated relationship between oil and water are analyzed in detail from the micro and macro perspectives. On this basis, different response characteristics of geophysical characteristics of different reservoirs are established, and various factors that affect the original oil saturation are analyzed. Finally, through practical work, we find ways to eliminate various types of influence calculation precision and realize the evaluation of complex reservoir reserves , As much as possible to improve the accuracy of the original oil saturation.