【摘要】 本文通过改变两种石油磺酸盐的混合比例，配制出碳数最低值不同的一系列混合表面活性剂溶液作为标尺，考察了几种有机酸、十八醇、Ｓｐａｎ６０ 及两种卟啉（ ＯＥＰ和ＥＴＩＯ） 对正癸烷模拟油的ＥＡＣＮ 值及油水界面张力的影响。更多还原

【Abstract】 A series of standard aqueuos solutions of petroleum sulfonates LH and La in various proportions with salinity 0.171 mol/L NaCl is used as the aqueous phase and different normal alkanes(C 5-C 14 ,C 10 in most cases)-as the oil phase modelling the crude oil in EOR studies. Some saturated aliphatic mormal acids(C 8,C 10 ,C 12 ,C 18 ), oleic acid, cyclohexyl carboxylic acid, and two porphyrins(OEP and ETIO) are added into the alkanes and their EACN values are determined using the criteria rules as minimum ACN value for the standard aqueous phase which gives the lowest stable value of transient interfacial tension with the alkane. The transient interfacial tension is also studied. The results obtained are discussed and reasoned.更多还原