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黑液是碱法造纸时所产生的废液，具有潜在碱的性质，可作为三元复合驱的一种组分，配成黑液－表面活性剂－聚合物体系（简称黑液体系），用于驱油。本文用准三组分相图，针对新疆试验区条件，研究了这一体系的采收率增值等值图，得到优化配方。通过黑液体系各种性质等值图的研究，结合驱油产出液的分析结果和微观驱油的直接观察，证实了黑液体系主要通过低界面张力、乳化－携带、乳化－捕集、自发乳化、表面亲水性减小、刚性膜软化等机理提高原油的采收率。
Black liquor is produced by alkaline papermaking waste liquid, with the potential of alkaline nature, can be used as a component of ASP flooding, dubbed black liquid - surfactant - polymer system (referred to as black liquor system) For oil displacement. In this paper, quasi-three-component phase diagram, for the conditions of the pilot area in Xinjiang, the system of recovery value-added contour map, get the optimal formula. Based on the study of the contour map of black liquor system and the analysis of the flooding fluid and the direct observation of micro-flooding, it is confirmed that the black liquor system is mainly produced by low interfacial tension, emulsification-carrying, emulsification-trapping, Spontaneous emulsification, reduced surface hydrophilic, rigid membrane softening mechanism to improve recovery of crude oil.