MN不等于零时水平层状大地直流电阻率测深曲线的计算  

THE COMPUTATION OF DC RESISTIVITY SOUNDING CURVES ON HORIZONTAL LAYERED EARTH BASED ON MN UNEQUAL TO ZERO

作　　者：韦柳椰[1] 吕玉增[2] 阮百尧[1] 

机构地区：[1]桂林工学院资源与环境工程系,广西桂林541004 [2]中南大学信息物理工程学院,湖南长沙410083

出　　处：《物探化探计算技术》2006年第1期26-28,共3页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家自然科学基金项目(40064001);广西科技开发项目(桂科攻0428006-17)

摘　　要：在MN趋于零时滤波计算三极装置直流电测深视电阻率的基础上,采用数值积分方法,导出了MN不趋于零时的三极(对称四极)装置直流电阻率测深曲线的计算方法。然后,利用三极和偶极的关系导出了水平层状大地偶极-偶极电测深的正演计算公式,并对水平层状大地的对称四极测深和偶极-偶极测深曲线进行了对比。Based on filter algorithm to calculate apparent resistivity of tri-electrode arrangement when MN is close to zero,this paper presents a numerical integral method of computing DC resistivity as MN is not equal to zero.Then,the relation between tri-electrode and dipole-dipole array gives the resistivity forward formula of dipole-dipole sounding on horizontal layered earth.Finally,it contrasts dipole-dipole sounding curves with Schlumberger sounding curves on horizontal layered earth.

关 键 词：水平层状大地 直流电阻率测深 数值积分 

分 类 号：P631.322[天文地球—地质矿产勘探]