Effect mechanism of seepage force on the hydraulic fracture propagation
作者机构：School of Petroleum EngineeringXi’an Shiyou UniversityXi’an710065China Engineering Research Center of Development and Management for Low to Extra-Low Permeability Oil and Gas Reservoirs in West ChinaMinistry of EducationXi’an Shiyou UniversityXi’an710065ShaanxiChina Xi’an University of Science and TechnologyXi’an710054ShaanxiChina
出 版 物：《International Journal of Coal Science & Technology》 (国际煤炭科学技术学报（英文）)
年 卷 期：2024年第11卷第3期
页 面：223-240页
核心收录：
学科分类：0820[工学-石油与天然气工程] 081901[工学-采矿工程] 0819[工学-矿业工程] 080103[工学-流体力学] 08[工学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学]
基 金：National Natural Science Foundation of China(51934005,U23B2089) Shaanxi Provincial Natural Science Basic Research Program Project(2024JC-YBQN-0554)
主 题：Hydraulic fracturing Seepage force Fracture propagation Discrete element method Reservoir heterogeneity
摘 要：The flow of fluid through the porous matrix of a reservoir rock applies a seepage force to the solid rock *** the seepage force exerted by fluid flow through the porous matrix of a reservoir rock has a notable influence on rock deformation and failure,its effect on hydraulic fracture(HF)propagation remains ***,in this study,we improved a traditional fluid–solid coupling method by incorporating the role of seepage force during the fracturing fluid seepage,using the discrete element ***,we validated the simulation results of the improved method by comparing them with an analytical solution of the seepage force and published experimental ***,we conducted numerical simulations in both homogeneous and heterogeneous sandstone formations to investigate the influence of seepage force on HF *** results indicate that fluid viscosity has a greater impact on the magnitude and extent of seepage force compared to injection rate,and that lower viscosity and injection rate correspond to shorter hydraulic fracture ***,seepage force influences the direction of HF propagation,causing HFs to deflect towards the side of the reservoir with weaker cementation and higher permeability.
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