Lessons Learned in Interfacial Tension Prediction Using a Mixture of Sulfonate- and Ethoxylate-based Surfactants in a Waxy Oil-brine System

IF 0.9 Q3 ENGINEERING, MULTIDISCIPLINARY
Rani Kurnia, Dian Asfriany Nurfalah, Deana Wahyuningrum, T. Marhaendrajana, Utjok W.R Siagian
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引用次数: 0

Abstract

The chemical-enhanced oil recovery (CEOR) method is applied to change reservoir rock or fluid characteristics by injecting alkaline, surfactant, and polymer or a combination of two or three of the compounds. Surfactant flooding improves oil recovery by reducing the interfacial tension between oil and water. Selecting reservoir surfactants, especially microemulsions, requires careful screening. This study predicted waxy oil system interfacial tension using surfactant mixtures at below- and above-optimum salinity. To predict the interfacial tension, microemulsion types, HLB, ideal salinity, and HLD were used. The study predicted oil-surfactant-water interfacial tension using SAE, FEO, and their mixtures. We improved the Huh equation by adding a fitting parameter, β, to accommodate the transition from type III to type II microemulsions as salinity increases. With increasing salinity, anionic surfactant’s hydrophilic-hydrophobic interactions change, affecting the  values and surfactant layer thickness. This study improved hydrophilic-lipophilic deviation (HLDN) by establishing a fixed interval for nonionic surfactants. Van der Waals attraction,  values and interface surfactant layer thickness are connected, reflecting the fact that lower  values reduce interfacial tension better. This study also found that surfactant packing at the oil-water interface increases the order of the oil-solution ratio and the microemulsion values with polarity.
使用磺酸盐和乙氧基表面活性剂混合物预测蜡油-盐水体系中的界面张力的经验教训
化学提高石油采收率(CEOR)方法是通过注入碱性物质、表面活性剂和聚合物或其中两种或三种化合物的组合来改变储层岩石或流体的特性。表面活性剂注入法通过降低油水之间的界面张力提高石油采收率。选择油藏表面活性剂,尤其是微乳剂,需要仔细筛选。本研究使用低于和高于最佳盐度的表面活性剂混合物预测了蜡油体系的界面张力。为了预测界面张力,使用了微乳类型、HLB、理想盐度和 HLD。研究使用 SAE、FEO 及其混合物预测了油-表面活性剂-水的界面张力。我们改进了 Huh 方程,增加了一个拟合参数 β,以适应随着盐度增加从 III 型微乳液向 II 型微乳液的过渡。随着盐度的增加,阴离子表面活性剂的亲水-疏水相互作用会发生变化,从而影响数值和表面活性剂层厚度。本研究通过确定非离子表面活性剂的固定区间,改善了亲水-亲油偏差(HLDN)。范德瓦耳斯吸引力、数值和界面表面活性剂层厚度之间存在联系,反映出较低的数值能更好地降低界面张力。这项研究还发现,油水界面上的表面活性剂填料会随着极性的增加而增加油溶比和微乳液值。
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来源期刊
Journal of Engineering and Technological Sciences
Journal of Engineering and Technological Sciences ENGINEERING, MULTIDISCIPLINARY-
CiteScore
2.30
自引率
11.10%
发文量
77
审稿时长
24 weeks
期刊介绍: Journal of Engineering and Technological Sciences welcomes full research articles in the area of Engineering Sciences from the following subject areas: Aerospace Engineering, Biotechnology, Chemical Engineering, Civil Engineering, Electrical Engineering, Engineering Physics, Environmental Engineering, Industrial Engineering, Information Engineering, Mechanical Engineering, Material Science and Engineering, Manufacturing Processes, Microelectronics, Mining Engineering, Petroleum Engineering, and other application of physical, biological, chemical and mathematical sciences in engineering. Authors are invited to submit articles that have not been published previously and are not under consideration elsewhere.
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