日用化学工业（中英文）2025，Vol.55Issue(4)：481-486,6.DOI:10.3969/j.issn.2097-2806.2025.04.010
无机凝胶强化自生泡沫调剖体系性能研究
Performance evaluation of inorganic gel enhanced in-situ foam profile control system
摘要
Abstract
Conventional in-situ foams are of poor strength and limited profile control ability,which could not effectively plug the high-permeability layers in highly heterogeneous reservoirs.To solve this problem,in this work,an inorganic gel enhanced in-situ foam system was proposed.The foaming performance and profile control performance of conventional in-situ foam system and inorganic gel enhanced in-situ foam system were both studied by using Waring Blender mixer,electron microscope and double sand-filled tube model.The results showed that,the average particle size of the inorganic gel enhanced in-situ foam system was 200 μm,and the drainage half-life reached 55.2 min,which was smaller and more uniform than that of conventional in-situ foam system and exhibited significantly enhanced stability.Conventional in-situ foam system had good profile control effect for parallel sand-filled tube model with permeability ratio of 5,and the overall recovery factor could be increased from 13%to 30%,but low-permeability layers could hardly be used for permeability ratio≥10.In contrast,the inorganic gel enhanced in-situ foam system had good profile control effect at different permeability levels.When the permeability ratio was≤10,the liquid production rate could be reversed.When the permeability ratio reached 15,the high-permeability layer could still be effectively blocked,and the low-permeability layer could be used.The overall recovery factor could be increased by 21%on the basis of water flooding.This work could provide a reference for conducting in-situ foam profile control in highly heterogeneous reservoirs.关键词
非均质油藏/泡沫强度/自生泡沫/调剖/无机凝胶Key words
heterogeneous reservoir/foam strength/in-situ foam/profile control/inorganic gel分类
石油、天然气工程引用本文复制引用
康小斌,屈亚宁,马宝鹏..无机凝胶强化自生泡沫调剖体系性能研究[J].日用化学工业（中英文）,2025,55(4):481-486,6.基金项目
吴起采油厂胜利山低渗透强非均质性储层构型与剩余油挖潜技术对策(ycsy2024cyzc-C-01) （ycsy2024cyzc-C-01）
