日用化学工业2018，Vol.48Issue(1)：14-17,22,5.DOI:10.13218/j.cnki.csdc.2018.01.003
SB-16/SDS复配微乳液驱油体系性能研究
Performance of SB-16/SDS blend surfactant microemulsion flooding system
摘要
Abstract
In order to improve the recovery of low permeability crude oil reservoir,a series of tests and research work with respect to the use of blend surfactant composed of cetylsulfobetain (SB-16 )and sodium dodecyl sulfate (SDS)were conducted. Results show that the suitable mass ratio of SB-16 and SDS is 7:3 while the critical micelle concentration (cmc)is 0. 025 g/L and the surface tension (γcmc )is 26. 7 mN/m. Based upon such results,the effects of mass fraction of alcohols of different carbon chain length on the interfacial tension and emulsifying performance were studied. The study recommends that 4％ mass fraction of the above -mentioned blend surfactant system +2％ iso -butanol is the best formulation. Under these conditions,the interfacial tension of the oil and water can be reduced to the order of ultra-low interfacial tension (10-3 mN/m). Experiments show that in the low permeability core,this microemulsion flooding system can improve crude oil recovery than the water flooding 10 percentage points. Obviously,the effect is better.关键词
十六烷基磺基甜菜碱/十二烷基硫酸钠/复配比/微乳液驱/界面张力Key words
cetylsulfobetaine/sodium dodecyl sulfate/blend ratio/microemulsion flooding/interfacial tension分类
化学化工引用本文复制引用
殷代印,仲玉仓..SB-16/SDS复配微乳液驱油体系性能研究[J].日用化学工业,2018,48(1):14-17,22,5.基金项目
国家自然科学基金资助项目(51474071) （51474071）
低渗透油藏表面活性剂驱微乳液渗流机理及数值模拟研究 （）
