Evaluating Performance of Graded Proppant Injection into CSG Reservoir: A Reservoir Simulation Study
- Ayrton Ribeiro (The University of Queensland Centre for Natural Gas Energi Simulation Research Fellow, The University of Queensland) | Vanessa Santiago (School of Chemical Engineering, The University of Queensland) | Zhenjiang You (School of Chemical Engineering, The University of Queensland) | Raymond Johnson Jr (School of Chemical Engineering, The University of Queensland The University of Queensland Centre for Natural Gas) | Suzanne Hurter (The University of Queensland Centre for Natural Gas)
- Document ID
- Unconventional Resources Technology Conference
- SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, 18-19 November, Brisbane, Australia
- Publication Date
- Document Type
- Conference Paper
- 2019, Unconventional Resources Technology Conference (URTeC)
- Recovery Factor, Productivity Index, Graded Particle Injection, Reservoir Simulation, Coal Seam Gas
- 53 in the last 30 days
- 53 since 2007
- Show more detail
|SPE Member Price:||USD 9.50|
|SPE Non-Member Price:||USD 28.00|
Stress-dependent permeability in coal seam gas (CSG) reservoirs can challenge the development of coal fields with lower initial permeabilities. Thus, advanced well stimulation techniques become essential. This work evaluates the performance of novel graded proppant injection (GPI) technique for CSG reservoir stimulation using reservoir simulation models. A simplified model for steady-state incompressible fluid flow during the early dewatering stage of production is validated by the analytical model results. A general model is then developed for GPI process during unsteady-state compressible two-phase flow in coal, accounting for gas desorption, matrix shrinkage, heterogeneous permeability distribution, and cross-flow. Fractured porous medium is modelled by a dual-porosity radial model. Stress-dependent permeability and matrix shrinkage effects are modelled using the Palmer-Mansoori equation. Under the incompressible fluid flow condition, the productivity index after well stimulation using GPI technique increases by 1.3~2.3 times. Moreover, simulation of compressible gas-water flow coupled with gas desorption from matrix yields 4~13% increment on recovery factor (RF) during production for 30 years. Stimulation accounting for matrix shrinkage enhances RF by 9~13%. For heterogeneous permeability distribution, more permeable layers exhibit deeper penetration of particles. The enhanced permeability owing to GPI yields higher production of both gas and water. Cross-flow between the coal layers influence the effectiveness of the depressurisation process and hence gas desorption post-stimulation. It allows dewatering of deeper layers and additional desorption of gas.
|File Size||1015 KB||Number of Pages||17|
BARREE, R. D., & MUKHERJEE, H. 1996. Determination of pressure dependent leakoff and its effect on fracture geometry. SPE Annual Technical Conference and Exhibition, Denver, Colorado, 6-9 October. SPE 36424-MS. 10.2118/36424-MS.
BEDRIKOVETSKY, P. 2008. Upscaling of stochastic micro model for suspension transport in porous media. Transport in Porous Media, 75 (3): 335-369. 10.1007/s11242-008-9228-6.
BIOT, M.A., 1941. General theory of three-dimensional consolidation. Journal of Applied Physics, 12 (2): 155-164. 10.1063/1.1712886.
FLOTTMAN, T., BROOKE-BARNETT, S., NAIDU, S. K., PAUL, P. K., KIRK-BURNNAND, E., BUSETTI, S., TRUBSHAW, R. L. 2013. Influence of in situ stresses on fracture stimulation in the Surat Basin, Southeast Queensland. SPE Unconventional Resources Conference and Exhibition-Asia Pacific, Brisbane, Queensland, 11-13 November. SPE 167064-MS. 10.2118/167064-MS.
GU, F. & CHALATURNYK, R. 2005. Sensitivity study of coalbed methane production with reservoir and geomechanic coupling simulation. Journal of Canadian Petroleum Technology, 44: 23-32. 10.2118/05-10-02.
HOLDITCH, S. A., ELY, J. W., SEMMELBECK, M. E., CARTER, R. H., HINKEL, J. & JEFFREY, R. G., JR. 1988. Enhanced recovery of coalbed methane through hydraulic fracturing. SPE Annual Technical Conference and Exhibition, Houston, Texas, 2-5 October. SPE-18250-MS, 689-697. 10.2118/18250-MS.
JOHNSON, R. L., Jr., GLASSBOROW, B., DATEY, A., PALLIKATHEKATHIL, Z. J., & MEYER, J. J. 2010. Utilizing current technologies to understand permeability, stress azimuths and magnitudes and their impact on hydraulic fracturing success in a coal seam gas reservoir. SPE Asia Pacific Oil and Gas Conference and Exhibition, Brisbane, Queensland, 18-20 October. SPE 133066-MS. 10.2118/133066-ms.
JOHNSON, R. L., Jr., SCOTT, M., JEFFREY, R G., CHEN, Z. Y., BENNETT, L., VANDENBORN, C., & TCHERKASHNEV, S. 2010. Evaluating hydraulic fracture effectiveness in a coal seam gas reservoir from surface tiltmeter and microseismic monitoring. SPE Annual Technical Conference and Exhibition, Florence, Italy, 19-22 September. SPE 133063-MS. 10.2118/133063-MS.
KESHAVARZ, A., BADALYAN, A., CARAGEORGOS, T., BEDRIKOVETSKY, P. & JOHNSON JR, R. 2015. Stimulation of coal seam permeability by micro-sized graded proppant placement using selective fluid properties. Fuel, 144: 228-236. 10.1016/j.fue1.2014.12.054.
KESHAVARZ, A., BADALYAN, A., JOHNSON, R. & BEDRIKOVETSKY, P. 2016. Productivity enhancement by stimulation of natural fractures around a hydraulic fracture using micro-sized proppant placement. Journal of Natural Gas Science and Engineering, 33: 1010-1024. 10.1016/j.jngse.2016.03.065.
KESHAVARZ, A., YANG, Y., BADALYAN, A., JOHNSON JR, R. & BEDRIKOVETSKY, P. 2014. Laboratory-based mathematical modelling of graded proppant injection in CBM reservoirs. International Journal of Coal Geology, 136: 1-16. 10.1016/j.coal.2014.10.005.
KHANNA, A., KESHAVARZ, A., MOBBS, K., DAVIS, M. & BEDRIKOVETSKY, P. 2013. Stimulation of the natural fracture system by graded proppant injection. Journal of Petroleum Science and Engineering, 111: 71-77. 10.1016/j.petro1.2013.07.004.
PALMER, I. & MANSOORI, J. 1998. How permeability depends on stress and pore pressure in coalbeds: a new model. SPE Reservoir Evaluation & Engineering, 1: 539-544. SPE-52607-PA. 10.2118/52607-PA.
RAMURTHY, M., MARJERISSON, D., & DAVES, S. 2002. Diagnostic Fracture Injection Test in coals to determine pore pressure and permeability. SPE Gas Technology Symposium, Calgary, Alberta, 30 April-2 May. SPE 75701-MS. 10.2118/75701-MS.
RIED, G.W., TOWLER, B.F., & HARRIS, H.G. 1992. Simulation and economics of coalbed methane production in the Powder River Basin. SPE Rocky Mountain Regional Meeting, Casper, Wyoming, 18-21 May. SPE-24360-MS. 10.2118/24360-MS.
ROADIFER, R D., MOORE, T. R., RATERMAN, K. T., FARNAN, R. A. & CRABTREE, B. J. 2003. Coalbed Methane parametric study: what's really important to production and when? SPE Annual Technical Conference and Exhibition, Denver, Colorado, 5-8 October. SPE-84425-MS. 10.2118/84425-MS.
RODRIGUES, S. & DICKSON, S. 2014. A phenomenological model for particle retention in single, saturated fractures. Groundwater, 52 (2): 277-283. 10.1111/gwat.12062.
UCAR, E., BERRE, I. & KEILEGAVLEN, E. 2017. Postinjection normal closure of fractures as a mechanism for induced seismicity. Geophysical Research Letters, 44 (19): 9598-9606. 10.1002/2017GL074282.
WU, Y., PAN, Z., MANG, D., DOWN, D. I., LU, Z. & CONNELL, L. D. 2018. Experimental study of permeability behaviour for proppant supported coal fracture. Journal of Natural Gas Science and Engineering, 51: 18-26. 10.1016/j.jngse.2017.12.023.
YOU, Z., BADALYAN, A., YANG, Y., BEDRIKOVETSKY, P., and HAND, M. 2019. Fines migration in geothermal reservoirs: laboratory and mathematical modelling. Geothermics 77: 344-367. 10.1016/j.geothermics.2018.10.006.
YOU, Z., WANG, D., LEONARDI, C., JOHNSON, R., & BEDRIKOVETSKY, P. 2019. Influence of elastoplastic embedment on CSG production enhancement using graded particle injection. APPEA Journal, 59: 310-318. 10.1071/AJ18086.
YOU, Z., YANG, Y., BADALYAN, A., BEDRIKOVETSKY, P., and HAND, M. 2016. Mathematical modelling of fines migration in geothermal reservoirs. Geothermics 59: 123-133. 10.1016/j.geothermics.2015.05.008.
ZHANG, W., TANG, X., WEISBROD, N. & GUAN, Z. 2012. A review of colloid transport in fractured rocks. Journal of Mountain Science, 9 (6): 770-787. 10.1007/s11629-012-2443-1.