What is it about?
In this work, we perform experiments and simulations to analyze the dependency of the pressure-saturation curve (or alternatively, water retention curve) on the sample geometry. We find that for two-dimensional systems, this curve can be reduced to a much simplified form which can be computed analytically, based on the fluids involved and porous medium geometry and connectivity.
Featured Image
Why is it important?
Pressure-saturation curves are used as closure relations in the integration of the generalized two-phase flow Darcy equations. They are also used as an input to the calculation of relative permeabilities. The currently available models for these curves rely on empirical parameters which, despite serving the purpose of fitting the curve, do yield a better understanding of the underlying physics. With our simplified analytical model, we can address more effectively how this curve depends on the relevant physical parameters.
Perspectives
Read the Original
This page is a summary of: Impact of sample geometry on the measurement of pressure‐saturation curves: Experiments and simulations, Water Resources Research, November 2015, American Geophysical Union (AGU),
DOI: 10.1002/2015wr017196.
You can read the full text:
Contributors
The following have contributed to this page