Frequency-dependent streaming potentials: a review

TL;DR

This review discusses models of frequency-dependent streaming potentials, compares transition frequencies across samples, and presents experimental methods and measurements related to electrokinetic coupling in geophysical observations.

Contribution

It provides a comprehensive comparison of models and experimental data on frequency-dependent streaming potentials, highlighting the inverse relationship between transition frequency and permeability.

Findings

Transition frequency depends inversely on permeability.

Comparison of Packard's and Pride's models.

Experimental setups for dynamic streaming potential measurements.

Abstract

The interpretation of seismoelectric observations involves the dynamic electrokinetic coupling, which is related to the streaming potential coefficient. We describe the different models of the frequency-dependent streaming potential, mainly the Packard's and the Pride's model. We compare the transition frequency separating low-frequency viscous flow and high-frequency inertial flow, for dynamic permeability and dynamic streaming potential. We show that the transition frequency, on a various collection of samples for which both formation factor and permeability are measured, is predicted to depend on the permeability as inversely proportional to the permeability. We review the experimental setups built to be able to perform dynamic measurements. And we present some measurements and calculations of the dynamic streaming potential.