Study of time spectral resistivity method

摘要

Time spectral resistivity (TSR) method is a new branch of the electrical prospecting method. It uses the same array as the spectral induced polarization (SIP) method or complex resistivity (CR) method in frequency domain, to observe the transient step-off responses of the electric field component in time domain, and study the characteristic of the electric field when the electromagnetic (EM) and IP effects exist simultaneously. Its aim is to pick up and utilize IP and EM effects respectively, in order to make full use of the detected information, and serve to environmental and engineering geologic investigation as well as various explorations of mineral resources, oil & gas and so on. In comparison with SIP or CR method, TSR method has the advantages of high productivity and low cost. This thesis deals with its data acquisition, processing and corresponding interpretation method, and 1-D forward and inverse algorithm, 2-D forward modeling.