中国石油大学学报（自然科学版）2018，Vol.42Issue(3)：107-113,7.DOI:10.3969/j.issn.1673-5005.2018.03.013
可动微凝胶油藏适应性及调驱机制
Reservoir adaptability of soft microgel and its profile control mechanism
摘要
Abstract
According to the actual need of the deep profile controlling reservoir, the permeability limit of the soft microgel (SMG),matching relationship between its particles and core throat, the injection, migration and plugging performance have been studied,by means of apparatus detection and theoretical analysis. And the deep profile controlling was investigated further with the microscopic experiments. The results show that the permeability limitation can be predicted using the fitted curve equa-tion between the core permeability limitation and mass fraction. When the mass fraction of SMG is 1% and the ratio of medium pore radius to particle radius is higher than 2.65,it meets the initial requirements of the reservoir transfer of SMG particles. From the microscopic level,it can be observed that the permeability resistance of big-size pore throats is increased through the blocking-breaking-blocking process of SMG particles flowing in the porous media. As a result,water can be diverted to the me-dium and small size pore throats and thus remaining oil can be replaced,which enlarges the sweeping volume.关键词
可动微凝胶/深部调驱/适应性/微观实验/机制分析Key words
soft microgel/deep profile controlling/adaptability/microscopic experiments/mechanism analysis分类
能源科技引用本文复制引用
牛丽伟,李建冰,卢祥国,李玮,吴行才,孙哲..可动微凝胶油藏适应性及调驱机制[J].中国石油大学学报（自然科学版）,2018,42(3):107-113,7.基金项目
"十二五"国家科技重大专项(2011ZX05010-003) （2011ZX05010-003）
东北石油大学引进人才科研启动项目 （）
