During the past years, the usage of new oil recovery methods known as enhanced oil recovery methods is increasing because of energy consumption rate enhancement and reservoir pressure depletion. Unfortunately, since most of the investigations were focused on crude oil, it is hard to find a generalized pattern of interfacial tension (IFT) and wettability change for different crude oils because of its complicated composition. So, it is necessary to examine the effect of specific fractions of crude oil especially resin and asphaltene fractions on the IFT and wettability alteration using systematic investigations. Although a limited number of investigations examined the interactions between these specific fractions and salts, there are no systematic reports respecting the possible interactions between asphaltene and resin fractions in the presence of alkaline and surfactant. So, in the first stage, the impact of dissolving asphaltene (0–9 wt%) in the toluene was investigated on the IFT reduction which revealed a decrease in IFT value from 34.8 to 23.3 mN/m as the asphaltene concentration was increased. Further experiments showed that the presence of MgCl₂ and NaCl with a maximum concentration of 5000 ppm led to a reduction in IFT to a minimum value of 18.3 and 17.3 mN/m for NaCl and MgCl₂, respectively, which means the higher impact of MgCl₂ on the IFT reduction. After that, the selected optimum concentrations of MgCl₂ and NaCl (5000 ppm) were used in the rest of the experiments in which the effect of resin fraction and other chemicals including sodium dodecyl benzenesulfonate (SDBS) and NaOH concentrations was examined on the IFT reduction and rock wettability. According to the obtained results, it was possible to reach the minimum IFT value of 0.08 mN/m, which is several orders lower than the original IFT value of the binary system without the chemicals using the optimum chemical formulation obtained by mixing proper concentrations of SDBS, NaOH, MgCl₂, and NaCl. Moreover, the obtained optimum formulations were used through core flooding experiments which revealed the possibility of increasing the oil recovery to a maximum value of 10.1% based on the original oil in place.

在过去的几年中，由于能源消耗率的提高和油藏压力的降低，被称为提高采收率的新采油方法的使用正在增加。不幸的是，由于大多数研究都集中在原油上，由于其复杂的成分，很难找到不同原油的界面张力（IFT）和润湿性变化的通用模式。因此，有必要通过系统研究来检验原油特定馏分尤其是树脂和沥青质馏分对界面张力和润湿性变化的影响。尽管有限数量的研究检查了这些特定馏分和盐之间的相互作用，但没有关于在碱和表面活性剂存在下沥青质和树脂馏分之间可能的相互作用的系统报告。因此，在第一阶段，研究了将沥青质（0-9 wt%）溶解在甲苯中对 IFT 降低的影响，结果表明，随着沥青质浓度的增加，IFT 值从 34.8 mN/m 降低到 23.3 mN/m。_{进一步的实验表明，最大浓度为 5000 ppm 的 MgCl 2}和 NaCl的存在导致 NaCl 和 MgCl ₂的 IFT 分别降至最小值 18.3 和 17.3 mN/m，这意味着 MgCl 的影响更大₂关于IFT的减少。此后，在其余实验中使用选定的最佳浓度 MgCl 2 和 NaCl (5000 ppm)，其中检查了树脂组分和其他化学品（包括十二烷基苯磺酸钠 (SDBS) 和 NaOH 浓度）对 IFT 降低的_影响和岩石润湿性。根据所得结果，使用通过混合适当浓度的SDBS获得的最佳化学配方，可以达到0.08 mN/m的最小IFT值，这比不使用化学品的二元体系的原始IFT值低了几个数量级、NaOH、MgCl ₂和NaCl。此外，将获得的最佳配方用于岩心驱油实验，揭示了在原始地质储量的基础上将石油采收率最高提高到10.1%的可能性。