Joint Electrical-Elastic Properties of Berea Sandstone

Simon Gonzalez-Sirois1, Bernard Giroux1, Tariq Eamon Mohammed2 and Douglas R Schmitt2, (1)Institut National de Recherche Scientifique, Québec, QC, Canada, (2)University of Alberta, Physics, Edmonton, AB, Canada

Contact First Author: Simon Gonzalez-Sirois; simon.gonzalez-sirois@ete.inrs.ca

Abstract ID#: 35222

 

English Abstract:
The aim of this research is to investigate the cross-property relationships between electrical and elastic properties of sandstone to improve the joint inversion of seismic and electromagnetic monitoring surveys in a CO2 sequestration context. We conducted a laboratory study of the impact of pressure change on the P and S wave velocity, attenuation and electrical conductivity of Berea sandstone. Measurements were obtained varying both the confining and the pore pressure in the 0-40 MPa range. Similar measurements were performed on a porous alumina rod with different petrophysical properties as a comparison. The four properties mentioned above are found to follow the exponential equation Z(P)=A+BP+Cexp(-DP) where the parameter D is universal for the properties under consideration.
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