Seismoelectric Conversion for the Detection of Porous Medium Interfaces between Wetting and Nonwetting Fluids

Abstract

We designed and developed an experimental setup in which acoustic to electromagnetic (EM) wave conversions at interfaces can be measured. Theoretical results are obtained with an electrokinetic full‐waveform theoretical model, where use was made of the Sommerfeld approach. Using bimodal samples, different fluid–solid interface effects and saturating fluids were investigated. The contrast between water and water‐saturated porous glass samples is larger than the contrast between water and oil‐saturated porous glass samples. The contrast between water and water‐saturated Fontainebleau sandstone is larger than the contrast between oil and water‐saturated Fontainebleau sandstone.