Abstract Summary
In order to understand different transport mechanisms involved, numerical simulations were performed, and the results were compared with laboratory data. In the framework of the EURAD/GAS project, a gas pressure dependent permeability model was implemented into the finite element code OpenGeoSys 6. Two types of gas injection tests carried out by the Institute for Rock Mechanics (IFG GmbH) and a gas injection test performed by École Polytechnique Fédérale de Lausanne (EPFL) were employed to investigate the gas transport through Opalinus Clay. The wet phase (water) was immobile in IFG experiments and was displaced by gas in EPFL experiment.
