Air Tests on Low-Permeability Claystone Formations. Experimental Results and Simulations

  • Enrique Romero
  • Rainer Senger
  • Paul Marschall
  • Rodrigo Gómez
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

The paper presents the results of an experimental investigation aimed at characterising the water and air permeability properties of low-permeability claystone formations from a Mesozoic sequence in Northern Switzerland. The experiments, besides providing quantitative data to calibrate hydraulic and two-phase flow properties, intend to analyse the phenomena and processes, which control the percolation of air through an initially water saturated claystone. Fast controlled- volume rate air injection experiments were performed in a triaxial cell, testing a total of four rock samples under isotropic stress state conditions at different initial porosity and at two sample orientations (flow parallel and orthogonal to bedding planes). Simulation results showed a good agreement between the measured pressures at the injection and outflow sides of the sample using a standard two-phase flow simulation code.

Keywords

Void Ratio Intrinsic Permeability Deep Sample Shallow Sample Outflow Volume 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Enrique Romero
    • 1
  • Rainer Senger
    • 2
  • Paul Marschall
    • 3
  • Rodrigo Gómez
    • 1
  1. 1.Department of Geotechnical Engineering and GeosciencesUniversitat Politècnica de CatalunyaBarcelonaSpain
  2. 2.Intera Inc., Swiss Branch EnnetbadenEnnetbadenSwitzerland
  3. 3.Nagra, Science and TechnologyNagraSwitzerland

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