Horizontal Well Interference Performance and Water Injection Huff and Puff Effect on Well Groups with Complex Fracture Networks:A Numerical Study
作者机构：State Key Laboratory of Shale Oil and Gas EnrichmentMechanisms and Effective DevelopmentSINOPECBeijing100101China Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production TechnologySINOPECBeijing100083China Key Laboratory of Tectonics and Petroleum ResourcesMinistry of EducationChina University of GeosciencesWuhan430074China
出 版 物：《Computer Modeling in Engineering & Sciences》 (工程与科学中的计算机建模（英文）)
年 卷 期：2023年第137卷第12期
页 面：2285-2309页
核心收录：
学科分类：0820[工学-石油与天然气工程] 080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）]
主 题：Unconventional reservoirs well interference embedded discrete fracture model water injection huff and puff complex fracture networks
摘 要：Well interference has become a common phenomenon with the increasing scale of horizontal well *** studies on well interference in horizontal wells do not properly reflect the physical model of the postfracturing well groups and the realistic fracturing process of infill *** the correspondence between well interference causative factors and manifestations is of great significance for infill well deployment and secondary oil *** this work,we develop a numerical model that considers low velocity non-Darcy seepage inshale reservoirs to study the inter-well interferencephenomenon that occurs in theSantanghufield,andconstruct an explicit hydraulic fracture and complex natural fracture network model with an embedded discrete fracture model,focusing on the effect of fracture network morphology on well *** model also considers a multi-segment wellbore model to accommodate the effect of inter-well crossflow on wellbore tubular *** changes in formation pressure and water saturation during fracturing are performed by controlling the injection pressure and water injection *** result shows that the shape of the fracture network generated by the infill well with the old well determines the subsequent fluid and oil-increasing performance of the disturbed *** synergistic production or competitive relationship formed by fractures with different connectivity between the two wells determines the positive and negative effects of the *** paper also investigates the adaptation study of water injection huff and puff schemes for well groups with different connectivity,and demonstrated a potential yield increase of up to 10.85%under adaptation *** method of identifying well interference based on the production dynamics of affected wells and the subsequent corresponding water injection method provides valuable references for the selection of secondary oil recovery measures.
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