Multi-channel, full waveform and flexible electrode combination resistivity imaging system

Abstract

The usual practice of resistivity imaging using standard electrode arrays, such as Schlumberger, Wenner or dipole-dipole, is based on the pseudosection section for ease of interpretation. However, the resistivity inversion technique has been more and more applied for interpretation of electrical resistivity data. With such a technique, it is not necessary to follow the rules of the standard electrode arrays. Also the technique requires more data to obtain more accurate and ore reliable results. With this in mind a new prototype multi-channel and multi-electrode, full waveform resistivity acquisition system which permits such a recording strategy has been developed. It allows for significant data collection capacity and flexibility and is therefore suitable for 2D or 3D surface or cross-hole tomography and for monitoring.