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复电阻率测井是基于岩石频散特性发展起来的一种新的测井方法,目前对于复电阻率测井的岩石频散机理还没有一个统一的认识,通过理论和岩石频散实验数据的分析以及柯尔-柯尔模型对实验数据的拟合,初步明确了在小于10 kHz的频率范围内,激发极化效应是引起岩石频散的主要因素,通过模拟井眼环境的岩石频散实验研究,验证了采用电极型电极系结构进行复电阻率测井的可行性.
Complex resistivity logging is a new well logging method developed based on the characteristics of rock frequency dispersion. At present, there is no unified understanding of the rock dispersion mechanism of complex resistivity logging. Based on the theoretical and experimental data of rock dispersion Analysis and Cole-Cole model fitting to the experimental data, the preliminary clear that in the frequency range of less than 10 kHz, the excitation polarization is the main factor causing the rock dispersion, by simulating the borehole environment of rock dispersion experiment The feasibility of using the electrode-type electrode structure to conduct the resistivity logging was verified and verified.