大庆石油地质与开发2025，Vol.44Issue(1)：86-92,7.DOI:10.19597/J.ISSN.1000-3754.202308021
低渗透油藏压驱裂缝展布特征及影响因素
Fracture distribution characteristics and influencing factors of fracturing-flooding in low permeability reservoir
摘要
Abstract
Fracturing-flooding technology is a new approach for efficient development of low permeability reser-voirs,but there are still many unclear mechanism problems.In view of rock fracture damage process involved in fracturing-flooding,physical simulation method for fracturing-flooding is established based on triaxial stress fluid-structure coupling experiment instrument,intelligent permeability field inversion instrument and micron CT scan-ning instrument to clarify fracture distribution characteristics and its influencing factors.The results show that water injection during fracturing-flooding causes regional non-uniform damage to rocks around well,and reservoir rocks have fracture characteristics in large displacement range.Fracture distribution during fracturing-flooding is affected by viscosity and displacement of injected fluid.When injection parameters reach the condition of rock fracture,the lower the injection displacement and fluid viscosity are,the more favorable they are for forming complex fracture networks.Fracture aperture during fracturing-flooding increases with the increase of injected fluid viscosity and dis-placement.The research provides theoretical guidance for field fracturing-flooding.关键词
压驱/裂缝展布/物理模拟/破裂模式/复杂缝网/低渗透油藏Key words
fracturing-flooding/fracture distribution/physical simulation/fracturing pattern/complex fracture networks/low permeability reservoirs分类
能源科技引用本文复制引用
张翼飞,孙强,于春磊,孙志刚,贝君平..低渗透油藏压驱裂缝展布特征及影响因素[J].大庆石油地质与开发,2025,44(1):86-92,7.基金项目
中国石油化工股份有限公司课题"压驱开发机理及数值模拟方法研究"(P21072-1). （P21072-1）
