| 不同类型表面活性剂在石英表面和油/水界面吸附行为的分子动力学模拟 |
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| 引用本文： | 李侠清,张星,王增敏,冯震,吕超,沈岩柏,韩聪. 不同类型表面活性剂在石英表面和油/水界面吸附行为的分子动力学模拟[J]. 矿产保护与利用, 2021, 41(2): 44-51. DOI: 10.13779/j.cnki.issn1001-0076.2021.02.007 |
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| 作者姓名： | 李侠清 张星 王增敏 冯震 吕超 沈岩柏 韩聪 |
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| 作者单位： | 中国石油化工股份有限公司胜利油田分公司石油工程技术研究院,山东 东营257000;东北大学 资源与土木工程学院,辽宁 沈阳110819 |
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| 基金项目： | "十三五"国家重大专项2017ZX05072国家自然科学基金项目51874073中国石油化工股份有限公司基础前瞻项目"低渗透砂岩油藏渗吸采油技术"中国石油化工股份有限公司攻关项目"压驱开发工艺技术研究"中央高校基本科研业务费项目N2001008 |
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| 摘 要： | 低渗透油藏开采中表面活性剂在岩石和油/水界面的吸附对岩石表面和油/水界面性质的影响,是低渗透油藏渗吸增强驱油技术的关键问题.本文运用分子动力学模拟方法研究了十八烷基二甲基羟丙基磺基甜菜碱(OHSB)、聚氧乙烯辛基苯酚醚-10(OP-10)、阳离子双子表面活性剂(12-4-12)、十二烷基苯磺酸钠(SDBS)和鼠李糖脂(...
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| 关 键 词： | 表面活性剂 石英表面 油/水界面 分子动力学 |
| 收稿时间： | 2021-03-12 |
Molecular Dynamics Simulation of Adsorption Behavior of Different Surfactants on Quartz Surface and Oil/water Interface |
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| LI Xiaqing,ZHANG Xing,WANG Zengmin,FENG Zhen,LV Chao,SHEN Yanbai,HAN Cong. Molecular Dynamics Simulation of Adsorption Behavior of Different Surfactants on Quartz Surface and Oil/water Interface[J]. Conservation and Utilization of Mineral Resources, 2021, 41(2): 44-51. DOI: 10.13779/j.cnki.issn1001-0076.2021.02.007 |
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| Authors: | LI Xiaqing ZHANG Xing WANG Zengmin FENG Zhen LV Chao SHEN Yanbai HAN Cong |
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| Affiliation: | 1.Petroleum Engineering Technology Research Institute, Sinopec Shengli Oilfield Company, Dongying 257000, Shandong2.School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, Liaoning |
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| Abstract: | The adsorption behavior of surfactants on the rock and oil/water interface and its influence on the properties of the rock surface and the oil/water interface are the key issues in producing low permeability reservoirs of imbibition enhanced oil displacement technology in low permeability reservoirs. In this paper, molecular dynamics simulation methods are used to study the octadecyl dimethyl hydroxypropyl sultaine (OHSB), polyoxyethylene octyl phenol ether-10 (OP-10), Gemini surfactant (12-4-12), sodium dodecylbenzene sulfonate (SDBS), and rhamnolipid (RH-2DA), five types of surfactants adsorption behavior of on the quartz (101) surface and the oil/water interface. The study results show that among the five surfactants, the electrostatic attraction between the Gemini surfactant12-4-12 and the negatively charged quartz surface is the strongest, and the electrostatic repulsion between the SDBS and the quartz surface is the strongest. 12-4-12 and RH-2DA can spontaneously adsorb on the quartz surface and reduce the wettability of the quartz surface. The adsorption energy of five surfactants on the quartz surface from small to large is 12-4-12 < RH-2DA < OHSB < OP -10 < SDBS. All five surfactants can be adsorbed on the surface of the oil phase spontaneously, and the order of adsorption strength on the surface of the oil phase is OP-10 > RH-2DA > OHSB > 12-4-12 > SDBS. The adsorption of the five surfactants at the oil/water interface can all enhance the oil/water interface's stability. |
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