测井技术2011，Vol.35Issue(6)：512-517,6.
利用等效电路模型研究泥质砂岩复电阻率频散特性
On the Frequency Dispersion Characteristics of Complex Resistivity in Shaly Sandstone Based on Equivalent Circuit Model
摘要
Abstract
For a long time, it is difficult to explain and describe mathematically the microscopic mechanism of complex resistivity in shaly sandstone. Based on ion concentration difference polarization and the deformation effect of electrical double-layer in shaly sandstone and the fluctuantion of ion current and electric current in shaly sandstone caused by harmonic variable current field, we created an equivalent circuit model to describe complex resistivity of shaly sand according to the series of capillary model, and provided the conversion relations between induced polarization potential, time characteristic and electronic component parameter of equivalent circuit model. The influence of concentration of saturated solution, cation exchange capacity and the microscopic parameter of pore structure on the dispersion character of complex resistivity of water bearing shaly sands is quantitatively computed.关键词
岩石物理性质/泥质砂岩/复电阻率/毛细管模型/等效电路模型/频散特性Key words
rock physical property/shaly sandstone/complex resistivity/capillary model/equivalent circuit model/frequency dispersion characteristics分类
天文与地球科学引用本文复制引用
关继腾,程媛媛,于华..利用等效电路模型研究泥质砂岩复电阻率频散特性[J].测井技术,2011,35(6):512-517,6.基金项目
国家自然科学基金项目(40874064)资助 （40874064）
