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Volume 26 Issue 3
Jul 2015
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Article Contents
Shiqi Liu, Shuxun Sang, Qipeng Zhu, Jiefang Zhang, Hefeng Gao, Huihu Liu, Lixing Lin. Triple medium physical model of post fracturing high-rank coal reservoir in southern Qinshui Basin. Journal of Earth Science, 2015, 26(3): 407-415. doi: 10.1007/s12583-014-0501-z
Citation: Shiqi Liu, Shuxun Sang, Qipeng Zhu, Jiefang Zhang, Hefeng Gao, Huihu Liu, Lixing Lin. Triple medium physical model of post fracturing high-rank coal reservoir in southern Qinshui Basin. Journal of Earth Science, 2015, 26(3): 407-415. doi: 10.1007/s12583-014-0501-z

Triple medium physical model of post fracturing high-rank coal reservoir in southern Qinshui Basin

doi: 10.1007/s12583-014-0501-z
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  • Corresponding author: Shuxun Sang, shuxunsang@163.com
  • Received Date: 25 Jun 2014
  • Accepted Date: 26 Oct 2014
  • Publish Date: 01 Jun 2015
  • In this paper, influences on the reservoir permeability, the reservoir architecture and the fluid flow pattern caused by hydraulic fracturing are analyzed. Based on the structure and production fluid flow model of post fracturing high-rank coal reservoir, Warren-Root Model is improved. A new physical model that is more suitable for post fracturing high-rank coal reservoir is established. The results show that the width, the flow conductivity and the permeability of hydraulic fractures are much larger than natural fractures in coal bed reservoir. Hydraulic fracture changes the flow pattern of gas and flow channel to wellbore, thus should be treated as an independent medium. Warrant-Root Model has some limitations and can't give a comprehensive interpretation of seepage mechanism in post fracturing high-rank coal reservoir. Modified Warrant-Root Model simplifies coal bed reservoir to an ideal system with hydraulic fracture, orthogonal macroscopic fracture and cuboid matrix. Hydraulic fracture is double wing, vertical and symmetric to wellbore. Coal bed reservoir is divided into cuboids by hydraulic fracture and further by macroscopic fractures. Flow behaviors in coal bed reservoir are simplified to three step flows of gas and two step flows of water. The swap mode of methane between coal matrix and macroscopic fractures is pseudo steady fluid channeling. The flow behaviors of methane to wellbore no longer follow Darcy's Law and are mainly affected by inertia force. The flow pattern of water follows Darcy's Law. The new physical model is more suitable for post fracturing high-rank coal reservoir.

     

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  • Chen, Y., 2009. Foundation of Numerical Reservoir Simulation. China University of Petroleum Press, Dongying. 6-24 (in Chinese)
    Fu, X. H., Qin, Y., 2003. Theories and Techniques of Permeability Prediction of Multiphase Medium Coalbed-Methane Reservoir. China University of Mining and Technology Press, Xuzhou. 19-107 (in Chinese)
    Fu, X. H., Qin, Y., Wei, Z. T., 2007. Coalbed Methane Geology. China University of Mining and Technology Press, Xuzhou. 28-46 (in Chinese)
    Ge, J. L., 2003. The Modern Mechanics of Fluids Flow in Oil Reservoir. Petroleum Industry Press, Beijing. 7-49 (in Chinese)
    Kong, Y. Y., 2010. Advanced Fluid Mechanics in Porous Medium. University Science and Technology of China Press, Beijing. 348-394 (in Chinese)
    Li, M., Jiang, B., Lin, S. F., et al., 2013. Structural Controls on Coalbed Methane Reservoirs in Faer Coal Mine, Southwest China. Journal of Earth Science, 24(3): 437-448 doi: 10.1007/s12583-013-0340-3
    Liu, S. Q., 2013. Geology and Engineering Cooperative Control and Prediction for the Deliverability of CBM Straight Wells in Southern Qinshui Basin: [Dissertation]. China University of Mining and Technology, Xuzhou (in Chinese with English Abstract)
    Liu, S. Q., Sang, S. X., Li, M. X., et al., 2012b. Control Factors of Coalbed Methane Well Depressurization Cone Under Drainage Well Network in Southern Qinshui Basin. Journal of China University of Mining and Technology, 41(6): 943-950 (in Chinese with English Abstract) http://www.researchgate.net/publication/287739419_Control_factors_of_coalbed_methane_well_depressurization_cone_under_drainage_well_network_in_southern_Qinshui_basin
    Liu, S. Q., Sang, S. X., Li, M. X., et al., 2013. Key Geologic Factors and Control Mechanisms of Water Production and Gas Production Divergences between CBM Wells Fanzhuang Block. Journal of China Coal Society, 38(2): 277-283 (in Chinese with English Abstract) http://www.ingentaconnect.com/content/jccs/jccs/2013/00000038/00000002/art00018
    Liu, S. Q., Sang, S. X., Li, Y. M., et al., 2012a. Analysis on Fracturing Failure Cause of Coal Bed Methane Well in South Part of Qinshui Basin. Coal Science and Technology, 40(6): 108-112 (in Chinese with English Abstract)
    Meng, Z. P., Tian, Y. D., Li, G. F., 2010. Theory and Method of Coalbed Methane Development Geology. Science Press, Beijing. 69-261 (in Chinese)
    Ni, X. M., Su, X. B., Zhang, X. D., 2009. Coalbed Methane Development Geology. Chemical Industry Press, Beijing. 88-188 (in Chinese)
    Pang, R. G., Guo, L. W., Qi, Y. L., 2009. Mechanism and Modes of CO Gas Diffusion in Coal Seams. Journal of Hebei Polytechnic University (Natural Science Edition), 31(4): 1-5, 10 (in Chinese with English Abstract) http://www.zhangqiaokeyan.com/academic-journal-cn_journal-north-china-university-science-technology-natural-edition_thesis/0201249454004.html
    Poollen, H. K., Jargon, J. R., 1969. Steady-State and Unsteady-State Flow of Non-Newtonian Fluids through Porous Media. Old SPE Journal, 9(1): 80-88 http://www.researchgate.net/publication/240780302_Steady-State_and_Unsteady-State_Flow_of_NonNewtonian_Fluids_Through_Porous_Media
    Sang, S. X., Liu, H. H., Li, Y. M., et al., 2009. Geological Controls Over Coal-Bed Methane Well Production in Suthern Qinshui Basin. Procedia Earth and Planetary Science, 1(1): 917-922 doi: 10.1016/j.proeps.2009.09.142
    Warren, J. E., 1964. The Performance of Heterogeneous Reservoirs. Proceedings of the Fall Meeting of the Society of Petroleum Engineers of AIME, Houston. 1-8. doi: 10.2118/964-MS
    Warren, J. E., Root, P. J., 1963. The Behavior of Naturally Fractured Reservoirs. Old SPE Journal, 3(3): 245-255 http://www.researchgate.net/publication/238337618_The_Behavior_of_Naturally_Fractured_Reservoirs
    Xue, L. L., 2009. Numerical Simulation Study on Fracturing Technique of Coal Bed Methane Reservoir: [Dissertation]. China University of Petroleum, Dongying (in Chinese with English Abstract)
    Zhang, J. G., Lei, G. L., Zhang, Y. Y., 2003. Hydrocarbon Reservoir Fluid Mechanics in Porous Medium. China University of Petroleum Press, Dongying. 1-84 (in Chinese)
    Zhang, X. M., Tong, D. K., 2008. The Coal Bed Methane Transport Model and Its Application in the Presence of Matrix Shrinkage. Science in China Series E: Technological Sciences, 51(7): 968-974 doi: 10.1007/s11431-008-0056-2
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