日用化学工业（中英文）2026，Vol.56Issue(5)：564-570,7.DOI:10.3969/j.issn.2097-2806.2026.05.002
压力对CO2泡沫性能及岩心流动影响
Effects of pressure on CO2 foam properties and core flow characteristics
摘要
Abstract
Since the influences of pressure on the performance and seepage characteristics of CO2 foam are unclear,in this work,the effects of pressure on the foaming capability,stability,bubble diameter,plugging capacity,and oil displacement efficiency of CO2 foam were systematically investigated through experimental methods.The results showed that,the higher the pressure,the higher the foaming capacity of the CO2 foam system,however in contrast,there was a competitive mechanism in the effect of pressure on foam stability.The nano-SiO2-reinforced foam system effectively addressed the problem of instability in traditional foams.Negative correlation was observed between pressure and bubble diameter,with high-pressure conditions producing smaller and more uniform bubbles.Elevated pressure could promote the formation of CO2 foam with good uniformity and stable migration in cores.Moreover,the increased pressure could enhance the effective viscosity and plugging efficiency of CO2 foam,expanding its applicability to reservoirs with diverse ranges of permeability.High-pressure conditions could improve the oil displacement efficiency of CO2 foam flooding,alleviating the disadvantages situation caused by reservoir heterogeneity and achieving substantial oil recovery enhancement.This research might deepen the understanding of the role of pressure in CO2 foam-enhanced oil recovery and provide theoretical basis for effective gas channeling control strategies.关键词
纳米SiO2/稳定性/CO2泡沫/气窜/提高采收率Key words
nano-SiO2/stability/CO2 foam/gas channeling/enhanced oil recovery分类
能源科技引用本文复制引用
郭程飞,章海宁,雷梦..压力对CO2泡沫性能及岩心流动影响[J].日用化学工业（中英文）,2026,56(5):564-570,7.基金项目
中国石油青年科技专项资助项目(2024DQ03172) （2024DQ03172）
中国石油集团测井有限公司博士后课题资助项目(F-D60024KY) （F-D60024KY）
