石油与天然气化工2025，Vol.54Issue(5)：33-39,7.DOI:10.3969/j.issn.1007-3426.2025.05.004
高温高盐条件下纳米颗粒分散稳定性研究进展
Progress in the dispersion stability of nanoparticles under high-temperature and high-salinity conditions
摘要
Abstract
The biggest challenge that must be overcome in the promotion and application of nanoparticles in oil and gas fields development is to ensure the dispersion stability of nanoparticles under high-temperature and high-salinity formation conditions.This paper comprehensively reviewed the dispersion stability status,stability mechanism,and influencing factors of nanoparticles under high-temperature and high-salinity conditions.It has been found that the stability of conventional nanoparticles is extremely poor under high-temperature and high-salinity conditions,and even aging for 24 h will show different degrees of precipitation phenomenon.The dispersion stability of nanoparticles is mainly controlled by interfacial interactions between particle surfaces and dispersion liquid phases,as well as the attractive and repulsive forces between particles,and is mainly related to the properties of nanoparticles,the properties of the dispersed liquid phase,and the external environment and other factors.This paper investigates the improvement of existing particle modification methods,such as physical adsorption modification and chemical grafting modification,on the dispersion stability of nanoparticles under high-temperature and high-salinity conditions.Finally,it is pointed out that in order to promote the application of nanoparticles in oil and gas fields development,the influence mechanism of external environmental conditions on the dispersion stability of nanoparticles should be further investigated,the dispersion stability mechanism of nanoparticles under high-temperature and high-salinity conditions should be further improved,and new modifiers and modification methods for dispersion stability should be further developed.关键词
纳米颗粒/分散稳定性/高温高盐/物理吸附/化学接枝/提高采收率Key words
nanoparticle/dispersion stability/high temperature and high salinity/physical adsorption/chemical grafting/enhanced recovery引用本文复制引用
张天赐,姚峰,侯克期,王磊..高温高盐条件下纳米颗粒分散稳定性研究进展[J].石油与天然气化工,2025,54(5):33-39,7.基金项目
江苏省卓越博士后计划项目资助(2024ZB435) （2024ZB435）
