中国石油大学学报（自然科学版）2024，Vol.48Issue(2)：135-141,7.DOI:10.3969/j.issn.1673-5005.2024.02.015
微纳米颗粒三相泡沫体系构筑及特性
Construction and characteristics of three-phase foam system with micro and nano particles
摘要
Abstract
In order to further improve the oil recovery after polymer flooding,a micro-nanoparticle three-phase foam system with self-adaptive plugging and flooding function was constructed considering the reservoir characteristics after polymer flood-ing.The characteristics of micro-nanoparticle three-phase foam system were studied by viscosity,interface,foam,and plug-ging and flooding performance experiment.The correlation between solution characteristics and oil displacement effect of three-phase foam system was analyzed by normalization method and weight coefficient method.The results show that the char-acteristic parameters of the three-phase foam system with soft micro particles are good and it has ultra-low interfacial tension.Its profile improvement rate is more than 82%,and it can enhance oil recovery by more than 14%after polymer flooding.The characteristic parameters of the hard nanoparticles three-phase foam system are relatively poor,but it can still enhance oil recovery by more than 10%after polymer flooding.The foam comprehensive index and kinematic viscosity of three-phase foam system are the main influencing factors of oil displacement effect,while the shear viscosity and interfacial tension are secondary influencing factors.关键词
微纳米颗粒/三相泡沫体系/聚驱后/黏度/剖面改善率Key words
micro and nano particles/three-phase foam system/after polymer flooding/viscosity/profile improvement rate分类
石油、天然气工程引用本文复制引用
刘宏生..微纳米颗粒三相泡沫体系构筑及特性[J].中国石油大学学报（自然科学版）,2024,48(2):135-141,7.基金项目
中石油科技专项(2016E-0207,2023ZZ17YJ02) （2016E-0207,2023ZZ17YJ02）
