摘要
本文讨论20—200MHz频率范围内平行板电容法测量岩石介电常数和电导率的方法,指出常用的静电场公式的局限性,给出较精确的似稳场动态公式,并讨论20—50MHz频率范围内的岩石介电特性。
The parallel-disk sample holder used to measure the conductivity and the dielectric permittivity of dissipative materials is analyzed in terms of quasistatic electromagnetic theory. It is shown that the commonly used static solution is not accurate enough to interpret data at high frequencies. Interpretation of the data is improved when higher-order correction terms are added to the zeroth-order static solution.This paper discusses the dielectric properties of reservoir rocks at the frequency range from 20 MHz to 50 MHz and a new experimental formula is proposed.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第1期99-110,共12页
Chinese Journal of Geophysics
关键词
岩石介电常数
甚高频
岩石介电测试
Parallel-disk sample holder, Shielding, Quasislatic theory dynamic formula, Reservoir rocks, Experimental linear formula.
