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感应测井的实部视电导率 (也叫R信号 )与虚部视电导率 (也叫X信号 )构成复视电导率。在给出这两种视电导率定义之后 ,利用解析解和数值模式匹配法计算了几种地层的感应测井的两种视电导率响应曲线。得出的主要结论有 :虚部视电导率对实部视电导率起一定的趋肤效应补偿作用 ;虚部视电导率的探测深度大于实部视电导率 ;井眼对实部视电导率的影响较大 ;实部视电导率的纵向分辨率优于虚部视电导率 ;当线圈系穿过的地层磁导率有变化时 ,虚部视电导率将有较大的波动。
Induction logging of the real part of the apparent conductivity (also known as R signal) and the imaginary part of the apparent conductivity (also called X signal) constitute diplopia conductivity. After the definitions of these two kinds of apparent conductivity are given, two kinds of apparent conductivity response curves of induction logging in several formations are calculated by using analytical solution and numerical pattern matching method. The main conclusions drawn are: imaginary part apparent conductivity plays a compensatory role in the real part apparent conductivity; the detection depth of imaginary part apparent conductivity is larger than the real part apparent conductivity; The vertical resolution of the real part apparent conductivity is better than that of the imaginary part; when the permeability of the strata through the coil system changes, the apparent conductivity of the imaginary part will fluctuate greatly.