An efficient 3D cell-based discrete fracture-matrix flow model for digitally captured fracture networks
作者机构：Department of Civil and Mineral EngineeringUniversity of TorontoTorontoON M5S 1A4Canada School of Civil EngineeringWuhan UniversityWuhan 430072China
出 版 物：《International Journal of Coal Science & Technology》 (国际煤炭科学技术学报（英文）)
年 卷 期：2023年第10卷第5期
页 面：87-106页
核心收录：
学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 0820[工学-石油与天然气工程] 081203[工学-计算机应用技术] 080103[工学-流体力学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0835[工学-软件工程] 0836[工学-生物工程] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）]
基 金：supported by the Natural Sciences and Engineering Research Council of Canada(NSERC)with NSERC/Energi Simulation Industrial Research Chair program NSERC Discovery 341275 and CRDPJ 54389419
主 题：Fractured porous medium-Flow simulation Digital image Cell-based DFM Finite volume method
摘 要：Complex hydraulic fracture networks are critical for enhancing permeability in unconventional reservoirs and mining ***,accurately simulating the fluid flow in realistic fracture networks(compared to the statistical fracture net-works)is still challenging due to the fracture complexity and computational *** work proposes a simple yet efficient numerical framework for the flow simulation in fractured porous media obtained by 3D high-resolution images,aiming at both computational accuracy and *** fractured rock with complex fracture geometries is numerically constructed with a cell-based discrete fracture-matrix model(DFM)having implicit fracture *** flow in the complex fractured porous media(including matrix flow,fracture flow,as well as exchange flow)is simulated with a pipe-based cell-centered finite volume *** performance of this model is validated against analytical/numerical *** a lab-scale true triaxial hydraulically fractured shale sample is reconstructed,and the fluid flow in this realistic fracture network is *** suggest that the proposed method achieves a good balance between computational efficiency and *** complex fracture networks control the fluid flow process,and the opened natural fractures behave as primary fuid *** and anisotropic features of fluid flow are well captured with the present model.
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