SEGJ Technical Conference

2.5-D Inversion of Time Domain IP Method

Abstract Time-domain induced polarization (IP) method is commonly used for mineral exploration. A 2.5-D time-domain IP forward program using FEM was developed to understand the relationship between transient IP responses and Cole-Cole parameters. As the result of 2.5-D modeling, time constant and frequency dependence are useful to characterize the target object. Moreover a 2.5-D time-domain IP inversion program was developed to obtain the subsurface distribution of time constant and frequency dependence from transient IP responses. The result of 2.5-D inversion is presented in this paper.