Authors: Guo, H; Adhikary, DP; Ishihara, N; Fujioka, M

Paper is not available for download
Contact Us


Cite As:
Guo, H, Adhikary, DP, Ishihara, N & Fujioka, M 2008, 'Coupled Strata and Gas Behaviour in the Co-Extraction of Coal and Methane', in Y Potvin, J Carter, A Dyskin & R Jeffrey (eds), SHIRMS 2008: Proceedings of the First Southern Hemisphere International Rock Mechanics Symposium, Australian Centre for Geomechanics, Perth, pp. 245-260,

Download citation as:   ris   bibtex   endnote   text   Zotero

As shallow coal deposits amenable to conventional extraction methods are being exhausted, coal mining is increasingly carried out in a deeper and more challenging environment with, for example, increased coal seam gas content and reduced coal and strata permeability. These conditions increase risks in mine gas drainage performance and mining operations and, if not managed properly, can have significant negative impact on coal mining productivity and recovery, mine health and safety, mine gas emission and its environmental impact. Coal mine gas (methane in particular) has been a cause of major coal mine disasters, significant greenhouse gas emissions and a key limiting factor to coal productivity improvement. However, when captured and utilised, coal mine methane becomes a source of abundant clean fuel or energy. An integrated mine gas simulation system has been developed to predict strata conditions and methane gas emission during longwall mining. The system can be used to assist selection and planning of suitable mining, gas management and utilisation strategies for new and existing mines. Several key mine gas assessment processes, such as mine site gas and geotechnical characterisation, and fully coupled mechanical deformation – fluid flow computer simulation, have been integrated in the simulation system. The integrated simulation approach is described in this paper and examples of mine site application are presented.

Adhikary, D.P. and Guo, H. (2000) An orthotropic Cosserat elasto-plastic model for layered rocks. Rock Mechanics Rock Engineering 35(3), pp. 161–170.
Adhikary, D.P. and Dyskin, A.V. (1998) A continuum model of layered rock masses with non-associative joint plasticity. International Journal for Numerical and Analytical Methods in Geomechanics 22(4), pp. 245–261.
Adhikary, D.P. and Dyskin, A.V. (1997) A Cosserat continuum model for layered media. Computers and Geotechnics 20(1), pp. 15–45.
Fullagar, P.K., Zhou, B. and Fallon, G.N. (1999) Automated interpretation of geophysical borehole logs for orebody delineation and grade estimation. Mineral Resources Engineering 8, pp. 269–284.
Guo, H., Mallett, C., Xue, S., Kahraman, H., Boland, J., Sliwa, R., Zhou, B., Soole, P., Poulsen, B.A., Harbers, C. and Maconochie, A.P. (2000a) Predevelopment studies for mine methane management and utilisation. CSIRO Exploration and Mining Report 699C.
Guo, H., Zhou, B., Poulsen, B.A. and Biggs, M. (2000b) 3D overburden geotechnical characterisation for longwall mining at Southern Colliery. Proceedings of Bowen Basin Symposium 2000, Rockhampton, Queensland, 22–24 October 2000.
Guo, H., Mallett, C., Xue, S., Poulsen, B.A., Kahraman, H., Zhou, B., Sliwa, R., Worrall, R., Shen, B., Adhikary, D.P., Boland, J. and Cunnington, M. (2001) Predevelopment studies for mine methane management and utilisation, CSIRO Exploration and Mining Report 800C.
Guo, H., Adhikary, D.P., Xue, S., Balusu, R., Poulsen, B.A., Wendt, M., Beath, A., Kahraman, H., Zhou, B. and Mallett, C. (2002) Predevelopment studies for mine methane management and utilisation. CSIRO Exploration and Mining Report 917C.
Kolesar, J. and Ertekin, T.M. (1986) The unsteady-state nature of sorption and diffusion phenomena in the micropore structure of coal. SPE Unconventional Gas Technology Symposium, Kentucky, pp. 289–314.
Schwerer, F.C. (1984) Development of coal-gas production simulators and mathematical models for well-test strategies. Gas Research Institute Final Report No. GRI – 84/0060, Chicago, Illinois.
Smith, D.M. and Williams F.L. (1984) Diffusional effects in the recovery methane from coalbeds. SPE Journal, pp. 529–535.

© Copyright 2024, Australian Centre for Geomechanics (ACG), The University of Western Australia. All rights reserved.
View copyright/legal information
Please direct any queries or error reports to