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Inversion of SIP Data for Cole-Cole and Constant-Phase-Angle Relaxation Model Parameters
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface 2006 - 12th EAGE European Meeting of Environmental and Engineering Geophysics, Sep 2006, cp-14-00075
- ISBN: 978-90-73781-62-7
Abstract
We present a tomographic inversion procedure for the computation of intrinsic Cole-Cole or Constant-Phase-Angle (CPA) model parameters from spectral induced polarization (SIP) data. The idea is to invert data at all frequencies simultaneously while using a subsurface model which consists only of the parameters of the relaxation model for each cell, instead of inverting each frequency separately for complex resistivities and fitting a relaxation model to each cell afterwards. Connecting the information from all frequencies during the inversion is expected to yield more consistent models. Both approaches are compared and also applied to a set of surface field data.