辽宁石油化工大学学报2026，Vol.46Issue(3)：51-58,8.DOI:10.12422/j.issn.1672-6952.2026.03.007
电脉冲压裂储层岩石机理与数值模拟研究
Mechanism and Numerical Simulation of Electrical Pulse Fracturing in Reservoir Rocks
摘要
Abstract
Amid global energy transition,electrical pulse fracturing has emerged as a key technology for environmentally sustainable development of unconventional oil and gas resources,as it uses controllable shockwaves generated by high-voltage pulse discharge to construct multi-scale fracture networks and achieve efficient rock fragmentation.This study focuses on the rock-breaking mechanisms and numerical simulation of electrical pulse fracturing.The principles of pulse discharge and energy conversion processes are systematically analyzed,with an equivalent model established between discharge-induced shockwaves and TNT explosion shockwaves.The fracturing mechanisms-including shear,cavitation,tensile effects are elucidated for sandstone and shale reservoirs,and the attenuation of fracturing efficacy with increasing distance is quantitatively evaluated.Using TNT explosion simulations performed on the Autodyn platform and damage monitoring in sandstone and shale,lithological parameters are found to critically govern shockwave energy attenuation paths and damage patterns.Specifically,sandstone reservoirs require pulse energy optimization to activate multidirectional fracture networks,whereas shale reservoirs call for distance modulation to guide the propagation of dominant fractures.关键词
电脉冲压裂/冲击波/破岩机理/数值模拟/损伤模式Key words
Electrical pulse fracturing/Shockwave/Rock-breaking mechanisms/Numerical simulation/Damage patterns分类
数理科学引用本文复制引用
仝少凯,岳艳芳,罗海云,王清宇..电脉冲压裂储层岩石机理与数值模拟研究[J].辽宁石油化工大学学报,2026,46(3):51-58,8.基金项目
中国石油川庆钻探工程公司科技攻关项目(CQ2024B-23-5-4-Z). （CQ2024B-23-5-4-Z）
