大庆石油地质与开发2025，Vol.44Issue(3)：103-111,9.DOI:10.19597/J.ISSN.1000-3754.202405041
单个凝胶微球的流变性及凝胶微球在多孔介质中的运移力学机制研究进展
Research progress on rheology of single gel microspheres and migration mechanical mechanism of gel microspheres in porous media
摘要
Abstract
Profile control of gel microspheres is the process of deformation and migration of large number of dis-persed single gel microspheres in reservoir media.The deformation and migration of gel microspheres essentially de-pend on their rheological property.Understanding the rheology of single gel microspheres in porous media plays an important role in promoting continuous development of profile control technique of gel microspheres.Therefore,test-ing method for rheological microscale parameters of single gel microspheres,principles for establishing rheological mechanical model and current research status of migration mechanical mechanism of gel microspheres in reservoir media are summarized.Combining different methods for testing microscale mechanical parameters of single gel mi-crospheres can realize transformation from testing local or single performance index of gel microspheres surface to testing overall or comprehensive performance index of gel microspheres,providing more accurate experiment basis for subsequent study of mechanical model.Based on the principle of viscoelastic decomposition,microscale visco-elastic mechanics model is studied by combining and overlapping microscale elastic mechanical model and mi-croscale viscous mechanical model,providing theoretical basis for subsequent numerical calculation.Based on mi-croscale viscoelastic mechanical model,and combined with relevant parameters of porous media and gel micro-spheres,the migration resistance of gel microspheres in reservoir media can be quantitatively characterized by cal-culating the variation of stress-strain with time of gel microspheres in porous media.The research provides theoreti-cal reference for promoting performance characterization of gel microspheres,efficient profile control of gel micro-spheres and the expansion of polymer material rheology from macro-to micro-scale.关键词
凝胶微球/流变/测试方法/力学模型/油藏介质Key words
gel microsphere/rheology/testing method/mechanical model/reservoir media分类
能源科技引用本文复制引用
张磊,倪军,樊平天..单个凝胶微球的流变性及凝胶微球在多孔介质中的运移力学机制研究进展[J].大庆石油地质与开发,2025,44(3):103-111,9.基金项目
国家自然科学基金项目"基于微观流变力学原理的单个凝胶微球长期变形与运移机制研究"(52204054) （52204054）
陕西省创新能力支撑计划项目"非常规油藏低碳环保提高采收率技术创新团队"(2023-CX-TD-31). （2023-CX-TD-31）
