驱油表面活性剂油水界面行为的实验研究和分子模拟的中期报告

驱油表面活性剂油水界面行为的实验研究和分子模拟的中期报告【摘要】驱油表面活性剂作为较新型的油田开发技术，已经在实际生产中得到了广泛的应用。本文从分子水平上对驱油表面活性剂在油水界面上的行为进行了实验研

驱油表面活性剂油水界面行为的实验研究和分子模拟 的中期报告 【摘要】 驱油表面活性剂作为较新型的油田开发技术，已经在实际生产中得 到了广泛的应用。本文从分子水平上对驱油表面活性剂在油水界面上的 行为进行了实验研究和分子模拟，并对实验结果和分子模拟结果进行了 对比和分析。实验研究表明，驱油表面活性剂能够在油水界面上形成稳 定的胶束结构，从而有效地降低了油水界面的表面张力和粘度。分子模 拟结果表明，驱油表面活性剂的疏水基团主要与油相相互作用，而疏水 基团与亲水基团之间的相互作用则主要发生在油水界面上。此外，不同 类型的驱油表面活性剂在油水界面上的行为也存在差异性，不同类型的 驱油表面活性剂对油水界面的影响机理也不同。 【关键词】 驱油表面活性剂；油水界面；胶束结构；表面张力；粘度 Abstract 【】 As anew technology for oilfield development, surfactants for EOR have been widely used in practical production. In this paper, we have studied the behavior of surfactants for EOR at the oil-water interface from amolecular level by experiments and molecular simulations, and compared and analyzed the results of both methods. The experimental results showed that surfactants for EOR can form stable micelle structures at the oil-water interface, which effectively reduces the surface tension and viscosity of the oil-water interface. Molecular simulation results showed that the hydrophobic groups of surfactants for EOR mainly interact with the oil phase, while the interaction between the hydrophobic groups and the hydrophilic groups mainly occurs at the oil-water interface. In addition, the behavior of different types of surfactants for EOR at the oil-water interface also varies, and the mechanism by which different types of surfactants for EOR affect the oil-water interface is also different.