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含油岩石电阻率与饱和度关系的理论基础是经典的阿尔奇公式,它是在实验室条件下对纯砂岩提出的,因此公式中的参数受到很多因素的影响。本文系统总结了阿尔奇公式中参数的影响因素,并在此基础上分别讨论了孔隙结构、温度、压力、泥质含量、润湿性和矿化度等对胶结指数和饱和度指数的影响,深入分析了它们对阿尔奇公式影响形式的复杂性问题。通过本文的分析,为进一步的研究奠定了理论基础。
The theoretical basis for the relationship between electrical resistivity and saturation of oil-bearing rocks is the classical Archie formula, which is proposed for pure sandstones under laboratory conditions and therefore the parameters in the equations are affected by many factors. In this paper, the influencing factors of parameters in Archie formula are systematically summarized. On the basis of these, the influence of pore structure, temperature, pressure, shale content, wettability and salinity on the cementation index and saturation index are discussed respectively. In-depth analysis of their complexity of the Archie formula impact form. Through the analysis of this article, laid the theoretical foundation for further research.