A simple method of interpreting dipole resistivity soundings

Abstract

A computational method has been developed based on a linear relationship between apparent resistivity and the kernel function through a matrix operator. Forward modeling of dipole apparent resistivity values over a one-dimensional layered earth model as well as the inversion of electrical sounding data can be easily accomplished using this matrix operator. For a few two-layer, three-layer, and four-layer earth models, the apparent resistivity values can be calculated quickly and accurately. It is shown that the technique is adaptable to automatic interpretation in both the resistivity and the kernel domains.