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In this study, the rock fracture propagation is simulated based on the ordinary state-based peridynamics, and a numerical model of rock hydraulic fracturing is proposed by means of real-time tracking of newly generated fracture and applying pressure to simulating the interaction between fracturing fluid and fracture surface. According to the digital image processing technology, the Zhang-Suen thinning algorithm is applied to extracting the skeleton of hydraulic fracture network, and a quantitative method of hydraulic fracture network is presented by using the statistical method to calculate the morphological parameters. Finally, the process of hydraulic fracture propagation and the evolution of fracture network morphological parameters are studied considering the effects of loading rate, in situ stress condition and elastic modulus. The results show that when the loading rate is small, the main fracture expands towards the direction of the larger in situ stress, and the fracture branch is not obvious. Increasing the loading rate can increase the average width and density of fractures, promote the opening degree and number of fractures, enhance the complexity of fracture network, and improve its permeability. When the horizontal and vertical in situ stresses are the same, the major fractures intersect. With the increase of vertical in situ stress, the horizontal fractures are restrained, the major fracture propagates along the vertical direction, and the total length and density of fractures increase. The increase of elastic modulus of rock mass can reduce the propagation of fracture branches and simplify the fracture network.
LIU B, JIN Y, CHEN M. Influence of vugs in fractured-vuggy carbonate reservoirs on hydraulic fracture propagation based on laboratory experiments[J]. Journal of Structural Geology, 2019, 124: 143−150
PU Chun-sheng, ZHENG Heng, YANG Zhao-ping, et al. Research status and development trend of the formation mechanism of complex fractures by staged volume fracturing in horizontal wells[J]. Acta Petrolei Sinica, 2020, 41(12): 1734−1743.
JIN Cheng-zhi, ZHANG Yu-guang, SHANG Li-tao, et al. Fracturing technique for the comprehensive crack in the tight gas reservoir[J]. Petroleum Geology and Oilfield Development in Daqing, 2018, 37(1): 154−158.
LI Ya-long, LIU Xian-gui, HU Zhi-ming, et al. Summary of numerical models for predicting productivity of shale gas horizontal wells[J]. Advances in Earth Science, 2020, 35(4): 350−362.
CHEN Lei, ZHANG Guang-qing, ZHANG Min, et al. Propagation process of hydraulic fracture crossing an orthogonal discontinuity[J]. Rock and Soil Mechanics, 2023, 44(1): 159−170.
TAN P, JIN Y, YUAN L, et al. Understanding hydraulic fracture propagation behavior in tight sandstone-coal interbedded formations: an experimental investigation[J]. Petroleum Science, 2019, 16: 148−160.
ZHANG R, HOU B, HAN H, et al. Experimental investigation on fracture morphology in laminated shale formation by hydraulic fracturing[J]. Journal of Petroleum Science and Engineering, 2019, 177: 442−451.
ZHAO Wan-chun, AI Chi, LI Yu-wei, et al. Study on rockmass deterioration and changes of porosity and permeability in double-porosity medium under hydraulic fracture based on damage theory[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(Suppl. 2): 3490−3496.
JIN Yan, ZHANG Xu-dong, CHEN Mian. Initiation pressure models for hydraulic fracturing of vertical wells in naturally fractured formation[J]. Acta Petrolei Sinica, 2005, 26(6): 113−114, 118.
WANG Li, MENG Bing-bing, CAO Yun-xing, et al. A volumetric opening model of hydraulic fracturing[J]. Chinese Journal of Rock Mechanics and Engineering, 2020, 39(5): 887−900.
SHENG Mao, LI Gen-sheng. Extended finite element modeling of hydraulic fracture propagation[J]. Engineering Mechanics, 2014, 31(10): 123−128.
BAO Jin-qing, YANG Chen-xu, XU Jian-guo, et al. A fully coupled and full 3D finite element model for hydraulic fracturing and its verification with physical experiments[J]. Journal of Tsinghua University (Science and Technology), 2022, 61(8): 833−841.
HU Qian-ting, LIU Ji-chuan, LI Quan-gui, et al. Numerical simulation of seepage induced stress field in sectional hydraulic fracturing of coal seam[J]. Journal of Mining and Safety Engineering, 2022, 39(4): 761−769.
SILLING S A. Reformulation of elasticity theory for discontinuities and long-range forces[J]. Journal of the Mechanics and Physics of Solids, 2000, 48: 175−209.
SHEN Feng, ZHANG Qing, HUANG Dan, et al. Damage and failure process of concrete structure under uni-axial tension based on peridynamics modeling[J]. Chinese Journal of Computational Mechanics, 2013, 30(Suppl. 1): 79−83.
GERSTLE W, SAU N, SILLING S. Peridynamic modeling of concrete structures[J]. Nuclear Engineering and Design, 2007, 237(12−13): 1250−1258.
GAO Cheng-lu, LI Shu-cai, ZHOU Zong-qing, et al. Peridynamics simulation of stress-seepage coupling in hydraulic fracturing of rock mass[J]. Journal of Tongji University (Natural Science), 2022, 50(4): 470−480.
QIN M, YANG D, CHEN W, et al. Hydraulic fracturing model of a layered rock mass based on peridynamics[J]. Engineering Fracture Mechanics, 2021, 258: 108088.
ZHANG Y, HUANG D, CAI Z, et al. An extended ordinary state-based peridynamic approach for modelling hydraulic fracturing[J]. Engineering Fracture Mechanics, 2020, 234: 107086.
MA Peng-fei, LI Shu-chen, YUAN Chao, et al. Simulations of crack propagation in rock-like materials by peridynamics based on SED criterion[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(6): 1109−1117.
MADENCI E, OTERKUS E. Peridynamic theory and its applications[M]. New York: Springer, 2014.
MADENCI E. Peridynamic integrals for strain invariants of homogeneous deformation[J]. Zeitschrift für Angewandte Mathematik und Mechanik, 2017, 97(10): 1236−1251.
SILLING S A, ASKARI E. A meshfree method based on the peridynamic model of solid mechanics[J]. Computers and Structures, 2005, 83(17): 1526−1535.
MADENCI E, OTERKUS E. Ordinary state-based peridynamics for plastic deformation according to von Mises yield criteria with isotropic hardening[J]. Journal of the Mechanics and Physics of Solids, 2016, 86: 192−219.
ZHANG Yu-bin, HUANG Dan. State-based peridynamics study on the hydraulic fracture of shale[J]. Rock and Soil Mechanics, 2019, 40(7): 2873−2881.
WU Fan, LI Shu-hui, DUAN Qing-lin, et al. Numerical simulation of hydraulic fracturing process based on peridynamics method[J]. Computer Aided Engineering, 2017, 26(1): 1−6.
ZHANG Qing, GU Xin, YU Yang-tian. Peridynamics simulation for dynamic response of granular materials under impact loading[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(1): 56−63.
CHANG Qing-he, WU Min-hua, LUO Li-ming. Handwritten Chinese character skeleton extraction based on improved ZS thinning algorithm[J]. Computer Applications and Software, 2020, 37(7): 107−113, 164.
LIU Chun, WANG Bao-jun, SHI Bin, et al. Analytic method of morphological parameters of cracks for rock and soil based on image processing and recognition[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(9): 1383−1388.
YANG L, JIANG Y, LI B, et al. Application of the expanded distinct element method for the study of crack growth in rock-like materials under uniaxial compression[J]. Frontiers of Structural and Civil Engineering, 2012, 6(2): 121−131.
ZHANG Z, PENG S, GHASSEMI A, et al. Simulation of complex hydraulic fracture generation in reservoir stimulation[J]. Journal of Petroleum Science and Engineering, 2016, 146: 272−285.
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