常州大学学报（自然科学版）2024，Vol.36Issue(3)：26-33,8.DOI:10.3969/j.issn.2095-0411.2024.03.004
纳米颗粒调剖剂的制备、表征及其聚集封堵特性
Preparation,characterization and aggregation plugging characteristic of nanoparticles profile control agent
摘要
Abstract
The study proposed the idea of dispersed injection in-situ aggregation plugging,using sty-rene and acrylamide as polymerization monomers to develop nanoparticles profile control agent with a surface containing amide groups and a core-shell heterogeneous structure.By injecting nanoparticles with a particle size much smaller than the pore throat size into the reservoir,the dispersed nanoparti-cles in the formation water are moved to the deep part of the reservoir and come into contact with the regulator in the formation to aggregate into a particle cluster that matches the size of the water break-through channel,achieving the plugging of the water breakthrough channel.The thermal decomposi-tion temperature of the prepared nanoparticles can reach more than 300 ℃,which can be suitable for high-temperature oil reservoirs.The expansion ratio of the nanoparticles is less than 2.0,which can effectively avoid the problem of shearing and breaking during the migration process due to the exces-sive expansion ratio.Core flooding experiments show that nanoparticles have good injectability and the injection pressure is almost the same as that of water injection.Nanoparticles can aggregate into parti-cle clusters after mixing with aggregation regulators,which can effectively block the pore-throats of the core.When the permeability of core is 0.1 μm2,the plugging rate of nanoparticles is more than 80％.关键词
深部调剖/纳米颗粒调剖剂/颗粒簇/封堵性能Key words
deep profile control/nanoparticles profile control agent/particle clusters/plugging per-formance分类
能源科技引用本文复制引用
邵明鲁,左姜,常爱莲,孙天宇,张厚叶,浮历沛..纳米颗粒调剖剂的制备、表征及其聚集封堵特性[J].常州大学学报（自然科学版）,2024,36(3):26-33,8.基金项目
江苏省自然科学青年基金资助项目(BK20220622) （BK20220622）
常州大学科研启动计划资助项目(ZMF21020383). （ZMF21020383）
