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邓少贵,边瑞雪,等.岩石电阻率频散及其对阿尔奇参数的影响.测井技术,1998,22(4):227~230岩石电阻率存在频散现象,频散性的强弱与地层水矿化度、含水饱和度、阳离子交换容量等有关。当地层水矿化度增高,饱含水岩石电阻率频散性减弱;当含水饱和度及地层水矿化度较低时,频散现象较明显。在其它情况基本相同时,泥质砂岩的阳离子交换容量越大,频散现象越明显。因此,岩石电阻率频散性影响着阿尔奇参数的变化。文中系统介绍了饱和度指数、胶结指数与频率之间的关系,认为实验室进行阿尔奇公式参数的测量应采取多频测量。
Deng Shaogui, while Rui Xue, and so on. Dispersion of Rock Resistivity and Its Effect on Archie ’s Parameters. Logging Technology, 1998,22 (4): 227 ~ 230 There is dispersion phenomenon of rock resistivity. The strength of frequency dispersion is related to formation water salinity, water saturation and cation exchange capacity. As the degree of salinity of local water increases, the dispersion of resistivity of saturated rock decreases. When the water saturation and formation salinity are low, the dispersion is more obvious. In other cases are basically the same, the greater the cation exchange capacity of shaly sandstone, the more obvious dispersion. Therefore, the dispersion of resistivity of rock affects the Archie’s parameters. The paper systematically introduces the relationship between saturation index, cementation index and frequency, and considers that multi-frequency measurement should be taken in the laboratory for the Archie formula parameter measurement.