Numerical simulation and engineering application of comb-shaped directional long borehole hydraulic fracturing under different arrangement of holes

LI Wen; WANG Guanghong; OU Cong; LI Shourui; LI Xiangwang; ZHAO Huajun; LIU Jianhua; ZHAO Bi

Safety in Coal Mines > 2021 > 52(5): 72-77.

LI Wen, WANG Guanghong, OU Cong, LI Shourui, LI Xiangwang, ZHAO Huajun, LIU Jianhua, ZHAO Bi. Numerical simulation and engineering application of comb-shaped directional long borehole hydraulic fracturing under different arrangement of holes[J]. Safety in Coal Mines, 2021, 52(5): 72-77.

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Numerical simulation and engineering application of comb-shaped directional long borehole hydraulic fracturing under different arrangement of holes

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Published Date: May 19, 2021

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Abstract

Abstract

In order to avoid the blindness of the hydraulic fracturing of the directional long borehole in coal mine 2130 of Xinjiang Coking Coal Group, and to accurately grasp the extension and expansion of hydraulic fracturing under different hole layout methods, this paper uses the numerical simulation method to carry out hydraulic fracturing numerical simulation for comb directional long borehole in 4# coal seam of coal mine 2130 with a buried depth of 500 m. The simulation results show that the different hole layout methods have obvious effects on hydraulic fracturing initiation pressure, crack initiation position, fracture mode and crack extension and expansion law, combined with the actual situation of 4# coal seam in coal mine 2130, the optimal drilling hole layout method and fracturing parameters are optimized for engineering practice, and good fracturing results have been achieved. Compared with the previous hydraulic fracturing measures at this level, the drainage concentration is increased by 2.7 times, and the scalar amount of drainage increased by 11.8 times.
- directional long drilling,
- hydraulic fracturing,
- numerical simulation,
- gas drainage,
- ground stress

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[1]	李学海，苟星奎. 定向长钻孔综合瓦斯抽采技术[J]. 价值工程，2013，32（5）：44-45. LI Xuehai, GOU Xingkui. Directional long boring comprehensive gas extraction technology[J]. Value Engineering, 2013, 32（5）: 44-45.
[2]	吕有厂.水力压裂技术在高瓦斯低透气性矿井中的应用[J].重庆大学学报，2010，33（7）：102-107. LV Youchang. Application the hydraulic fracturing technology in the high pressure and low permeability mine[J]. Journal of Chongqing University, 2010, 33（7）: 102-107.
[3]	刘海金.定向长钻孔水力压裂在松软煤层中的应用研究[J].江西煤炭科技，2017（3）：20-23. LIU Haijin. Practical research on hydraulic fracturing of directional long drilling in soft coal seam[J]. Jiangxi Coal Science & Technology, 2017（3）: 20-23.
[4]	李延军.碎软煤层井下多点定向长钻孔水力压裂技术[J].煤矿安全，2018，49（6）：45-48. LI Yanjun. Long multi-point underground directional drilling hydraulic fracturing technology for low-permeability weak coalbed[J]. Safety in Coal Mines, 2018, 49（6）: 45-48.
[5]	闫江伟，张小兵，张子敏.煤与瓦斯突出地质控制机理探讨[J].煤炭学报，2013，38（7）：1174-1178. YAN Jiangwei, ZHANG Xiaobing, ZHANG Zimin. Research on geological control mechanism of coal-gas outburst[J]. Journal of China Coal Society, 2013, 38（7）: 1174-1178.
[6]	徐芝纶.弹性力学简明教程[M].北京：高等教育出版社，2013.
[7]	颜志丰.山西晋城地区煤岩力学性质及煤储层压裂模拟研究[D].北京：中国地质大学（北京），2009.
[8]	李传亮，孔祥言.油井压裂过程中岩石破裂压力计算公式的理论研究[J].石油钻采工艺，2000，22（2）：54. LI Chuanliang, KONG Xiangyan. A theoretical study on rock breakdown pressure calculation equations of fracturing process[J]. Oil Drilling & Production Technology, 2000, 22（2）: 54.
[9]	Yang T H, Li L C, Tham L G, et al. Numerical approach to hydraulic fracturing in heterogeneous and permeable rocks[J]. Key Engineering Materials, 2003, 243-244: 351-356.
[10]	袁志刚.煤岩体水力压裂裂缝扩展及对瓦斯运移影响研究[D].重庆：重庆大学，2014.

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[3]	WEI Meng, YUAN Chenhan, JIANG Yong, SU Tao, YUAN Chenxin. Verification Study on Residual Stress Equation of Pressure Relief in Blasting of High Ground Stress Tunnel[J]. Safety in Coal Mines, 2019, 50(6): 266-271.
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[5]	GUO Chenye, QIN Le, LI Dong, LI Yong, ZHOU Dongping. Effect of Ground Stress and Initial Fissure on Crack Initiation Direction and Pressure by Hydraulic Fracturing[J]. Safety in Coal Mines, 2015, 46(12): 161-165.
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[10]	ZENG Zhao-you. Field Testing and Analysis of Deep Ground Stress in No.1 Coal Mine of Pingdingshan Coal Industry[J]. Safety in Coal Mines, 2012, 43(7): 143-146.

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Numerical simulation and engineering application of comb-shaped directional long borehole hydraulic fracturing under different arrangement of holes

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