Patent ID: 9377554
Filing Date: 2016-06-28
CPC Classification: G01V

Claim Text:
1. A method of estimating electrical impedance spectra of an earth formation, comprising: estimating average ion concentrations in pores within the earth formation by selecting the estimated average from at least one (a) integrating ion concentrations over an area of at least one pore of the pores within the earth formation, (b) using temperature and salinity logs for the earth formation, and (c) integrating a weighting function over the area of the at least one pore of the pores within the earth formation; estimating effective transference numbers of ions in the pores using the average ion concentrations and ion mobility values; and using at least one processor to estimate the electrical impedance spectra by using the effective transference number of ions in the pores and a one dimensional model of pore spaces.