References
- Barati, R., and J.-T. Liang. 2014. A review of fracturing fluid systems used for hydraulic fracturing of oil and gas wells. Journal of Applied Polymer Science 131. 40735.
- Chen, M. J., Y. Lu, Y. L. Kang, L. J. You, Z. X. Chen, J. Liu, and P. S. Li. 2020. Investigation of enhancing multi-gas transport ability of coalbed methane reservoir by oxidation treatment. Fuel 278:118377. doi:https://doi.org/10.1016/j.fuel.2020.118377.
- Cheng, Y. G., Y. Y. Lu, Z. L. Ge, L. Cheng, J. W. Zheng, and W. F. Zhang. 2018. Experimental study on crack propagation control and mechanism analysis of directional hydraulic fracturing. Fuel 218:316–24. doi:https://doi.org/10.1016/j.fuel.2018.01.034.
- Ge, Z., M. Zeng, Y. Cheng, H. Wang, and X. Liu. 2019. Effects of Supercritical CO2 Treatment Temperature on Functional Groups and Pore Structure of Coals. Sustainability 11:7180. doi:https://doi.org/10.3390/su11247180.
- Geng, W., T. Nakajima, H. Takanashi, and A. Ohki. 2009. Analysis of carboxyl group in coal and coal aromaticity by Fourier transform infrared (FT-IR) spectrometry. Fuel 88:139–44. doi:https://doi.org/10.1016/j.fuel.2008.07.027.
- Hao, P. Y., Y. J. Meng, F. G. Zeng, T. T. Yan, and G. B. Xu. 2020. Quantitative Study of Chemical Structures of Different Rank Coals Based on Infrared Spectroscopy. Spectroscopy and Spectral Analysis 40:787–92.
- He, X., X. Liu, B. Nie, and D. Song. 2017. FTIR and Raman spectroscopy characterization of functional groups in various rank coals. Fuel 206:555–63. doi:https://doi.org/10.1016/j.fuel.2017.05.101.
- Hongchao, X., N. Guanhua, X. Jingna, C. Weimin, X. Meng, X. Yuhang, W. Hui, and W. Gang. 2020. The effect of SDS synergistic composite acidification on the chemical structure and wetting characteristics of coal. Powder Technology 367:253–65. doi:https://doi.org/10.1016/j.powtec.2020.03.056.
- Liu, X., Z. Wang, D. Song, H. Xueqiu, and T. Yang. 2020. Variations in surface fractal characteristics of coal subjected to liquid CO2 phase change fracturing. International Journal of Energy Research 44:8740–53. doi:https://doi.org/10.1002/er.5568.
- Liu, X., and H. Xueqiu. 2016. Effect of pore characteristics on coalbed methane adsorption in middle-high rank coals. Adsorption 23:3–12. doi:https://doi.org/10.1007/s10450-016-9811-z.
- Lu, Y., F. Yang, G. Zhaolong, S. Wang, and Q. Wang. 2015. The influence of viscoelastic surfactant fracturing fluids on gas desorption in soft seams. Journal of Natural Gas Science and Engineering 27:1649–56. doi:https://doi.org/10.1016/j.jngse.2015.10.031.
- Lu, Y., M. Yang, G. Zhaolong, Z. Zhou, C. Chai, and H. Zhao. 2019. Influence of viscoelastic surfactant fracturing fluid on coal pore structure under different geothermal gradients. Journal of the Taiwan Institute of Chemical Engineers 97:207–15. doi:https://doi.org/10.1016/j.jtice.2019.01.024.
- Lu, Y. Y., C. J. Chai, Z. Zhou, Z. L. Ge, and M. M. Yang. 2020. Influence of bioconversion on pore structure of bituminous coal. Asia-Pacific Journal of Chemical Engineering 15.
- Lu, Y. Y., H. D. Zhang, Z. Zhou, Z. L. Ge, C. J. Chen, Y. D. Hou, and M. L. Ye. 2021. Current Status and Effective Suggestions for Efficient Exploitation of Coalbed Methane in China: A Review. Energy & Fuels 35:9102–23. doi:https://doi.org/10.1021/acs.energyfuels.1c00460.
- Ni, G., L. Shang, S. Rahman, M. Xun, H. Wang, X. Yuhang, and H. Xie. 2020. Effect of nitric acid on the pore structure and fractal characteristics of coal based on the low-temperature nitrogen adsorption method. Powder Technology 367:506–16. doi:https://doi.org/10.1016/j.powtec.2020.04.011.
- Su, E., Y. Liang, X. Chang, Q. Zou, X. Minghan, and A. P. Sasmito. 2020. Effects of cyclic saturation of supercritical CO2 on the pore structures and mechanical properties of bituminous coal: An experimental study. Journal of CO2 Utilization 40:101208. doi:https://doi.org/10.1016/j.jcou.2020.101208.
- Tao, S., S. Chen, and Z. Pan. 2019. Current status, challenges, and policy suggestions for coalbed methane industry development in China: A review. Energy Science & Engineering 7:1059–74. doi:https://doi.org/10.1002/ese3.358.
- Thomas, L., H. S. Tang, D. M. Kalyon, S. Aktas, J. D. Arthur, J. Blotevogel, J. W. Carey, A. Filshill, P. C. Fu, G. Hsuan, et al. 2019. Toward better hydraulic fracturing fluids and their application in energy production: A review of sustainable technologies and reduction of potential environmental impacts. Journal of Petroleum Science and Engineering 173:793–803. doi:https://doi.org/10.1016/j.petrol.2018.09.056.
- Wang, F., Y. P. Cheng, S. Q. Lu, K. Jin, and W. Zhao. 2014. Influence of Coalification on the Pore Characteristics of Middle High Rank Coal. Energy & Fuels 28:5729–36. doi:https://doi.org/10.1021/ef5014055.
- Wanniarachchi, W. A. M., P. G. Ranjith, and M. S. A. Perera. 2017. Shale gas fracturing using foam-based fracturing fluid: A review. Environmental Earth Sciences 76: doi: https://doi.org/10.1007/s12665-017-6399-x.
- Yan, F., B. Lin, C. Zhu, C. Shen, Q. Zou, C. Guo, and T. Liu. 2015. A novel ECBM extraction technology based on the integration of hydraulic slotting and hydraulic fracturing. Journal of Natural Gas Science and Engineering 22:571–79. doi:https://doi.org/10.1016/j.jngse.2015.01.008.
- Yang, M., L. Yiyu, G. Zhaolong, Z. Zhou, C. Chai, and L. Zhang. 2020. Optimal selection of viscoelastic surfactant fracturing fluids based on influence on coal seam pores. Advanced Powder Technology 31:2179–90. doi:https://doi.org/10.1016/j.apt.2020.03.005.
- Yang, Y. P., X. C. Lin, X. J. Chen, W. J. Guo, Y. G. Wang, J. S. Zhang, and O. Kawa. 2018. Investigation on the effects of different forms of sodium, chlorine and sulphur and various pretreatment methods on the deposition characteristics of Na species during pyrolysis of a Na-rich coal. Fuel 234:872–85. doi:https://doi.org/10.1016/j.fuel.2018.07.130.
- Zhang, K. Z., Y. P. Cheng, K. Jin, H. J. Guo, Q. Q. Liu, J. Dong, and W. Li. 2017. Effects of Supercritical CO2 Fluids on Pore Morphology of Coal: Implications for CO2 Geological Sequestration. Energy & Fuels 31:4731–41. doi:https://doi.org/10.1021/acs.energyfuels.6b03225.
- Zhu, H. J., Y. W. Ju, Y. Qi, C. Huang, and L. Zhang. 2018. Impact of tectonism on pore type and pore structure evolution in organic-rich shale: Implications for gas storage and migration pathways in naturally deformed rocks. Fuel 228:272–89. doi:https://doi.org/10.1016/j.fuel.2018.04.137.
- Zou, M., C. Wei, M. Zhang, J. Shen, Y. Chen, and Q. Yu. 2013. Classifying Coal Pores and Estimating Reservoir Parameters by Nuclear Magnetic Resonance and Mercury Intrusion Porosimetry. Energy & Fuels 27:3699–708. doi:https://doi.org/10.1021/ef400421u.