A Method for In-Situ Permeability Testing of Loose Porous Media Based on Vacuum Extraction

Abstract

The permeability of loosely porous media is difficult to test. A vacuum extraction based in-situ permeability test for loose porous media has been proposed. The calculation follows from the typical Darcy's law. A mathematical computational model of in situ permeability testing based on pressure decay curves has been developed. The effect of the depth of the return packing on the permeability test is analysed and the permeability of the porous media is obtained to verify the validity of the calculated method.