乳化和润湿反转现象的耗散粒子动力学研究
Simulation of emulsification and wettability alteration phenomena with dissipative particle dynamics
查看参考文献21篇
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文摘
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利用耗散粒子动力学方法,研究了化学驱过程中乳化和润湿反转两个重要的物理化学现象.通过合理划分流体粒子和定义粒子之间相互作用参数,模拟了十二烷基苯磺酸钠、正十二烷和水三组分体系的自发乳化现象;通过附加固壁条件,模拟了在水动力作用下吸附在岩石表面的油珠发生破裂的非自发乳化过程,以及由于表面活性剂在岩石表面吸附而引起的润湿反转现象,比较了润湿反转前后残余油珠的运动情况.模拟结果表明:作为介观力学的离散粒子动力学方法,耗散粒子动力学方法可作为研究包含物理化学现象的化学驱渗流问题的重要手段. |
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其他语种文摘
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The dissipative particle dynamics (DPD) was used to simulate the emulsification and wettability alteration phenomena in the process of chemical flooding. The spontaneous emulsifications of sodium dodecylbenzene sulfate (SDBS), dodecane and three-component water system were simulated on the basis of the reasonable selection of particles and definition of interaction parameters between particles. The solid wall boundary conditions were adopted to simulate the non-spontaneous emulsification process of oil drop remained on the surface of rock under the action of hydrodynamics. The wettability alteration phenomena induced by the adsorption of surfactant on the surface of rock were investigated. The motion of residual oil drop on wetting and non-wetting rock surfaces shows that the dissipative particle dynamics, as a mesoscopic discrete particle dynamics method, provides a proper access to the problems of porous flow with physicochemical phenomena in chemical flooding for enhanced oil recovery. |
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来源
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石油学报
,2009,30(2):259-262,266 【核心库】
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关键词
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强化采油
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化学驱
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乳化
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润湿反转
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耗散粒子动力学
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介观力学
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地址
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1.
中国科学院力学研究所,工程科学部, 北京, 100190
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中国石油长城钻探工程公司, 北京, 100101
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托普威尔石油技术服务有限公司, 北京, 100101
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0253-2697 |
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学科
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石油、天然气工业 |
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基金
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国家973计划
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文献收藏号
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CSCD:3613611
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