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Comprehensive Review on the Role of Surfactants in the Chemical Enhanced Oil Recovery Process
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2022-01-03 , DOI: 10.1021/acs.iecr.1c03301 Satyajit Chowdhury 1, 2 , Saket Shrivastava 3 , Abhijit Kakati 4 , Jitendra S. Sangwai 1, 5, 6
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2022-01-03 , DOI: 10.1021/acs.iecr.1c03301 Satyajit Chowdhury 1, 2 , Saket Shrivastava 3 , Abhijit Kakati 4 , Jitendra S. Sangwai 1, 5, 6
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With a constant upsurge in energy demand, production from depleted and harsh reservoirs through enhanced oil recovery techniques (EOR) has significantly increased. Among many EOR techniques, chemical EOR (cEOR) is one of the most widely used methods of oil extraction. Surfactants used in cEOR are instrumental in reducing interfacial tension (IFT) and altering the wettability of rock, which leads to additional oil recovery. This review draws attention to detail on surfactants from fundamentals to field scale. Properties of surfactants like phase behaviors, critical micelle concentration (CMC), hydrophilic–lipophilic balance and deviation, zeta potential, and their importance are discussed in depth. The presence of a saline environment, polymer, cosurfactant, and other factors affecting the performance of surfactant during the cEOR process are also elaborated. Key findings on surfactant adsorption on reservoir rock with other influencing aspects have also been reported in this study. Types of surfactants, from basic to the likes of polymeric, viscoelastic, Gemini, natural, and their effects on oil recoveries have been analyzed and compared. Special emphasis on emerging aids for surfactant flooding such as applications of nanotechnology, use amphoteric Janus particles, and synergies of surfactant–low salinity water flooding, along with their mechanisms and recent advances have been thoroughly duscussed. Lastly, the review delineates discerning criteria for the selection of surfactants, reviews recent field applications, and outlines the challenges that the industry faces while implementing surfactant cEOR. It has been found that exhaustive studies have been conducted on sandstones with success. However, extreme temperature and saline conditions in the case of carbonate reservoirs limit the applicability of surfactants, and the pursuit to accomplish its efficacy continues.
中文翻译：
化学强化采油过程中表面活性剂作用的综合评述
随着能源需求的不断增长，通过提高采油技术（EOR）从枯竭和恶劣的油藏中生产的产量显着增加。在众多 EOR 技术中，化学 EOR (cEOR) 是最广泛使用的石油开采方法之一。cEOR 中使用的表面活性剂有助于降低界面张力 (IFT) 和改变岩石的润湿性，从而提高采收率。这篇评论提请注意表面活性剂从基础到现场规模的细节。深入讨论了表面活性剂的性质，如相行为、临界胶束浓度 (CMC)、亲水-亲油平衡和偏差、zeta 电位及其重要性。盐水环境、聚合物、辅助表面活性剂的存在，还阐述了在 cEOR 过程中影响表面活性剂性能的其他因素。本研究还报道了表面活性剂在储层岩石上的吸附以及其他影响方面的主要发现。分析和比较了表面活性剂的类型，从基础到聚合物、粘弹性、Gemini、天然等，以及它们对石油采收率的影响。特别强调了新兴的表面活性剂驱助剂，例如纳米技术的应用、两性 Janus 颗粒的使用以及表面活性剂与低盐度水驱的协同作用，以及它们的机理和最新进展。最后，该评论描述了选择表面活性剂的辨别标准，回顾了最近的现场应用，并概述了行业在实施表面活性剂 cEOR 时面临的挑战。已经发现已经成功地对砂岩进行了详尽的研究。然而，碳酸盐储层的极端温度和盐分条件限制了表面活性剂的适用性，并且继续追求实现其功效。
更新日期：2022-01-12
中文翻译：
化学强化采油过程中表面活性剂作用的综合评述
随着能源需求的不断增长，通过提高采油技术（EOR）从枯竭和恶劣的油藏中生产的产量显着增加。在众多 EOR 技术中，化学 EOR (cEOR) 是最广泛使用的石油开采方法之一。cEOR 中使用的表面活性剂有助于降低界面张力 (IFT) 和改变岩石的润湿性，从而提高采收率。这篇评论提请注意表面活性剂从基础到现场规模的细节。深入讨论了表面活性剂的性质，如相行为、临界胶束浓度 (CMC)、亲水-亲油平衡和偏差、zeta 电位及其重要性。盐水环境、聚合物、辅助表面活性剂的存在，还阐述了在 cEOR 过程中影响表面活性剂性能的其他因素。本研究还报道了表面活性剂在储层岩石上的吸附以及其他影响方面的主要发现。分析和比较了表面活性剂的类型，从基础到聚合物、粘弹性、Gemini、天然等，以及它们对石油采收率的影响。特别强调了新兴的表面活性剂驱助剂，例如纳米技术的应用、两性 Janus 颗粒的使用以及表面活性剂与低盐度水驱的协同作用，以及它们的机理和最新进展。最后，该评论描述了选择表面活性剂的辨别标准，回顾了最近的现场应用，并概述了行业在实施表面活性剂 cEOR 时面临的挑战。已经发现已经成功地对砂岩进行了详尽的研究。然而，碳酸盐储层的极端温度和盐分条件限制了表面活性剂的适用性，并且继续追求实现其功效。
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