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天然气-水-活性剂混合体系在石英表面吸附微观机理研究 被引量:1

Micro-mechanism Study about the Adsorption of Gas-water-surfactant Mixture on the Quartz Surface
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摘要 构建了天然气-水-活性剂混合体系与α-石英晶面构成的界面超分子结构模型,采用分子动力学方法研究了温度为350 K和325 K,活性剂为甲醇的情况下,岩石对天然气分子以及水分子的界面吸附行为的影响。研究发现甲醇分子可降低水分子与α-石英表面的结合能从而起到降低水锁的危害,并从分子动力学的角度解释了解除水锁危害的微观机理。 Gas-water-surfactant mixed system and alpha quartz crystal interface supramolecular structures model was constructed. Using the method of molecular dynamics, the adsorption behavior of quartz crystal-water and quartz crystal-gas under the temperature of 350 K and 325 K were studied with methanol as the surfactant. The result showed that methanol molecules in a certain extent remove water-blocking harm through reducing water molecules and alpha quartz surface binding-energy. The microscopic mechanism of removing water-blocking hazard from molecular dynamics was explained.
出处 《硅酸盐通报》 CAS CSCD 北大核心 2011年第3期502-505,共4页 Bulletin of the Chinese Ceramic Society
基金 教育部科学技术研究重点项目资助(No.108023)
关键词 天然气分子 α-石英 吸附 分子动力学 gas α-quartz adsorption molecular dynamics
作者简介 苏东东(1986-)男,硕士研究生,主要从事材料物理研究 通讯作者:卢贵武.Email:lugw@cup.edu.cn
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