The rule of magnetic inductiondensity, induced eddy current and electromagnetic force varied with high frequency sine exciting current was investigated.
This method is applicable to various log curves, such as laterolog, induction electrolog, neutron log, density log and self potential log curves.
此适用于多种测井曲线，如侧向测井、感应测井、中子测井、密度测井和自然电位测井等曲线。
3
If sequential pattern of grain reduction occurs, the density growth only gives information about the distribution of development induction period among grains.