不同物性参数的岩石电性参数频散特性实验

Experiments of rock's electrical parameter dispersion properties with different physical parameters

岩石电性参数的频散特性不仅受孔隙流体性质及其分布的影响,与岩石的物性参数也关系密切.本文通过不同孔隙度、不同渗透率的岩石电性参数频散特性的实验研究,依据Maxwell-Wagner界面极化理论,分析了岩石物性参教对岩石频散特性的影响规律及物理机理,同时建立了岩石电性参数频散特性与孔隙度和渗透率的关系模型,验证了利用岩石的电性参数频散特性评价储层物性参数的可行性.

Apart from the impaction of pore fluids properties and their distribution,rock＇ s electrical parameter dispersion properties are closely related to physical parameters of rocks.In this article,based on the Maxwell-Wagner interfacial polarization theory,the experiment research on rock ＇ s electrical parameter dispersion properties with different porosities and permeabilities was carried out to analyze the effect of physical parameters on rock＇ s electrical parameter dispersion properties,as well as the physical mechanism of this impaction process.At the same time,a relationship model was established to connect the dispersion properties with physical parameters,such as porosity and permeability.Besides,the feasibility of using rock＇ s electrical parameter dispersion properties to evaluate reservoir physical parameters was addressed.