Authors: Jeffrey, RG; Zhang, X

Cite As:
Jeffrey, RG & Zhang, X 2008, 'Hydraulic Fracture Growth in Coal', in Y Potvin, J Carter, A Dyskin & R Jeffrey (eds), Proceedings of the First Southern Hemisphere International Rock Mechanics Symposium, Australian Centre for Geomechanics, Perth, pp. 369-379.

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A significant number of hydraulic fracture treatments in coal seams have been mined and the propped fracture geometry mapped. Efforts to monitor fracture growth remotely or by measuring pressure in offset wells have added to the database on fracture growth in coal. Despite this considerable body of work, fracturing coal still can result in unexpected response and model predictions of fracture pressure and extent are unreliable, unless considerable empirical experience is available and used to calibrate the model for any new site. This state of affairs is a result of the layered and naturally fractured nature of coal. This paper will present selected data from lab and field experiments and modelling results that together provide an insight into the main factors contributing to high treating pressure and shorter than expected length development for hydraulic fracture treatments in coal.

Detournay, E. (2004) Propagation regime of fluid-driven fractures in impermeable rocks, International Journal of Geomechanics, 4, pp. 35–45.
Detournay, E. and Cheng, A.H-D. (1993) Fundamentals of poroelasticity, Chapter 5 in Comprehensive Rock Engineering: Principles, Practice, and Projects. Vol. II, Analysis and Design Methods, C. Fairhurst (editor), Pergamon Press, pp. 113–171.
Diamond, W.P. and Oyler, D.C. (1987) Effects of stimulation treatments on coalbeds and surrounding strata, USBM report RI 9083.
Elder, C.H. (1977) Effects of hydraulic stimulation on coalbeds and associated strata, USBM report RI 8260.
Enever, J.R., Jeffrey, R.G. and Casey, D.A. (2000) The relationship between stress in coal and rock, presented at the Fourth North American Rock Mechanics Symposium – NARMS 2000, Seattle, 31 July–3 August, pp. 409–414.
Enever, J.R. and Hennig, A. (1997) The relationship between permeability and effective stress for Australian coals and its implications with respect to coalbed methane exploration and reservoir modelling, presented at the International Coalbed Methane Symposium, Tuscaloosa, 12–16 May, pp. 13–22.
Germanovich, L.N. and Astakhov, D.K. (2004) Stress-dependent permeability and fluid flow through parallel joints, Journal of Geophysical Research., 109, B09203.
Jeffrey, R.G. and Boucher, C. (2004) Sand propped hydraulic fracture stimulation of horizontal in-seam gas drainage holes at Dartbrook Coal Mine, in proceedings of the COAL 2004 Symposium, University of Wollongong, 4–6 February.
Jeffrey, R.G. and Settari, A. (1998) An instrumented hydraulic fracture experiment in coal, SPE 39908, Proceedings of the 1998 SPE Rock Mt. Regional/Low Permeability Reservoirs Symposium and Exhibition, Denver, 5–8 April.
Jeffrey, R.G., Settari, A. and Smith, N.P. (1995) A comparison of hydraulic fracture field experiments, including mineback geometry data, with numerical fracture model simulations, paper SPE 30508 presented at the 1998 SPE Annual Technical Conference and Exhibition, Dallas, 22–25 October, pp. 591–606.
Jeffrey, R.G., Vlahovic, W., Doyle, R.P. and Wood, J.H. (1998) Propped fracture geometry of three hydraulic fractures in Sydney Basin coal seams, paper SPE 50061 presented at the 1998 SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, 12–14 October.
Jeffrey, R.G., Weber, C.R., Vlahovic, W. and Enever, J.R. (1994) Hydraulic fracturing experiments in the Great Northern Coal Seam, paper SPE 28779 presented at the 1994 SPE Asia Pacific Oil and Gas Conference, Melbourne, 7–10 November, pp. 361–371.
Jeffrey, R.G., Byrnes, R.P., Lynch, P.A. and Ling, D.J. (1992) An analysis of hydraulic fracture and mineback data for a treatment in the German Creek coal seam, paper SPE 24362 presented at the 1992 SPE Rocky Mt. Regional Meeting, Casper, 18–21 May, pp. 445–457.
Jeffrey, R.G., Hinkel, J.J., Nimerick, K.H. and McLennan, J. (1989) Hydraulic fracturing to enhance production of methane from coal seams, paper 8992 presented at the 1989 Coalbed Methane Symposium, Tuscaloosa, 17–20 April, pp. 385–394.
Kravits, S.J. (1993) Evaluation of hydraulically fractured in-mine horizontal wells as a completion approach for coalbed methane recovery independent of, and in conjunction with coal mining operations, REI Underground Exploration Draft Report.
Mayerhofer, M.J., Richardson, M.F., Walker, R.N., Meehan, D.N., Oehler, M.W. and Browning, R.R. (1997) Proppants? We Don’t Need No Proppants, paper SPE 38611 presented at the 1997 SPE Annual Technical Conference and Exhibition, San Antonio, 5–8 October.
Perkins, T.K. and Kern, L.R. (1961) Widths of hydraulic fractures, Journal of Petroleum Technology, September, pp. 937–949.
Pine, R.J. and Batchelor, A.S. (1984) Downward migration of shearing in jointed rock during hydraulic injections, Internatinal Journal of Rock Mechanics Mining Science and Geomechanics Abstracts, 21(5), pp. 249–263.
Steidl, P.F. (1991) Inspection of induced fractures intercepted by mining in the Warrior Basin, Alabama, paper 9162 in Proceedings of the 1991 Coalbed Methane Symposium, Tuscaloosa, 13–16 May.
Warpinski, N.R. (1983) Measurement of width and pressure in a propagating hydraulic fracture, paper SPE/DOE 11648, Proceedings of the SPE/DOE Symposium on Low Permeability, 14–16 March, Denver, pp. 409–420.
Wold, M.B. and Jeffrey, R.G. (1999) A comparison of coal seam directional permeability as measured in laboratory core tests and in well interference tests, paper SPE 55598 presented at the 1999 SPE Rocky Mt Regional Meeting, Gillette, 15–18 May.
Zhang, X., Jeffrey, R.G. and Thiercelin, M. (2007) Deflection and propagation of fluid-driven fractures at frictional bedding interfaces: A numerical investigation, Journal of Structural Geology, 29, pp. 396–410.

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