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Authors: Geoff Wang 1 ; Xiaorong Wei 2 ; Hui An 1 ; Fu-Yang Wang 1 and Victor Rudolph 1

Affiliations: 1 The University of Queensland, Australia ; 2 Sinopec Oil & Gas Australia Pty Ltd, Australia

Keyword(s): Coal, Coalbed Methane (CBM), Anisotropic Permeability, Reservoir Simulation.

Related Ontology Subjects/Areas/Topics: Application Domains ; Chemical and Petroleum Engineering ; Complex Systems Modeling and Simulation ; Fluid Dynamics ; Simulation and Modeling

Abstract: In this study, an alternative permeability model was developed and compared with data from laboratory investigations. The model was further applied for reservoir simulation with several cases in order to evaluate the effects of the anisotropic permeability variation on the CO2-sequestration and CO2-sequestration enhanced coalbed methane (CO2-ECBM) recovery. The permeability model developed in this study is based on a discontinuum medium approach, in which coal is treated as a discontinuum medium containing anisotropic matrixes and cleats. The permeability variations and anisotropic permeability ratios under isotropic net stresses were tested with relatively large coal samples. The simulations show good agreements with the experimental data, revealing that the developed model is superior for describing stress- and sorption-induced permeability variations in coals compared with models using constant values for stress-dependent parameters. The results from reservoir simulation incorpora ting the developed permeability model show the anisotropic permeability exhibit significant effect on CO2-ECBM recovery. (More)

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Paper citation in several formats:
Wang, G.; Wei, X.; An, H.; Wang, F. and Rudolph, V. (2014). Modeling Anisotropic Permeability of Coal and Its Effects on Coalbed Methane Reservoir Simulation. In Proceedings of the 4th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH; ISBN 978-989-758-038-3; ISSN 2184-2841, SciTePress, pages 477-483. DOI: 10.5220/0005006504770483

@conference{simultech14,
author={Geoff Wang. and Xiaorong Wei. and Hui An. and Fu{-}Yang Wang. and Victor Rudolph.},
title={Modeling Anisotropic Permeability of Coal and Its Effects on Coalbed Methane Reservoir Simulation},
booktitle={Proceedings of the 4th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH},
year={2014},
pages={477-483},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005006504770483},
isbn={978-989-758-038-3},
issn={2184-2841},
}

TY - CONF

JO - Proceedings of the 4th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH
TI - Modeling Anisotropic Permeability of Coal and Its Effects on Coalbed Methane Reservoir Simulation
SN - 978-989-758-038-3
IS - 2184-2841
AU - Wang, G.
AU - Wei, X.
AU - An, H.
AU - Wang, F.
AU - Rudolph, V.
PY - 2014
SP - 477
EP - 483
DO - 10.5220/0005006504770483
PB - SciTePress

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