摘要
根据静态吸附法研究了石油羧酸盐表面活性剂在岩心上的吸附损失，讨论了电解质浓度、离子强度及表面活性剂的一次抽提液与二次抽提液的复配对石油羧酸盐表面活性剂吸附量的影响，分析了碱／石油羧酸盐／聚合物（ＨＰＡＭ）三元复合体系中各组分的相互作用对羧酸根离子吸附的贡献。实验表明：表面活性剂的吸附量随着电解质的浓度及离子强度的增加而增大；在三元复合体系中石油羧酸盐的吸附量远远低于表面活性剂单独作用时的吸附量；三元复合驱油体系对于提高原油采收率具有广阔的应用前景。
The absorption loss of petroleum carboxylate surfactant in text core was studied by static absorption mechod. The influence of the compound with primary and secondary extracted fluids of surfactant,electrolyte concentration and ionintensity on the absorption capacity is discussed.The contribution of the interactions of the individual ocomponent,which composed alkali/petroleum carboxylate surfactant/polymer(HPAM) three component compounded system,to the absorption capacity of carboxylic acid ion is analyzed.Experiments showed that the absorption quantity of surfactant increases with the increase of electrolyte concentration and ion intensity.The absorption quantity of petroleum carboxylate in three component compounded system is far less than that of surfactant solely.Applicatioon of three component compound displacement system to EOR will be full of promise.
基金
国家八.五重点攻关项目
