学术报告

报告题目：Capillarity dynamics of spontaneous imbibition in porous media: from pore-scale to continuum scale

报 告 人： 秦朝中  教授

时    间：2019年 12 月 20 日（周五）下午15:00

地    点：国家重点实验室A403学术报告厅

报告人单位：重庆大学资源与安全学院

欢迎全校师生参加！

报告内容：Spontaneous imbibition plays an important role in many subsurface applications such as enhanced oil/gas recovery in fractured reservoirs and geological sequestration of carbon dioxide. In those applications, the imbibition rate and the trapping of nonwetting phase are of great interest. To predict spontaneous imbibition by the two-phase Darcy model, a number of material properties need to be determined such as capillary pressure and relative permeability. Moreover, sharp wetting fronts observed in many core-scale experiments indicate that capillarity dynamics in spontaneous imbibition is strong, particularly at its early stage. This challenges conventional measurements of material properties which were mostly conducted in the equilibrium. In this talk, I will first introduce a novel dynamic pore-network model for spontaneous imbibition in porous media. Multiform idealized pore elements have been used to represent complex pore spaces so that our model bears the potential to quantitatively predict spontaneous imbibition for a ‘real’ porous medium. The model is used to understand capillarity dynamics at the pore scale. Then, I will address the upscaling of the pore-scale information to the REV-scale modeling of spontaneous imbibition. Finally, I will summarize the challenges in the REV-scale modeling of spontaneous imbibition in porous media; and further talk about how to include this capillarity dynamics in the two-phase model.

报告人简介：重庆大学百人计划特聘研究员、博士生导师（2019.10~至今）。2005年本科毕业于西安交通大学力学系，2008年获得中国科学技术大学流体力学硕士学位，2013年获得荷兰乌特列支大学地球科学系博士学位。先后在荷兰乌特列支大学（2012.10~2016.10）和荷兰埃因霍温科技大学（2016.10~2019.9）从事博士后研究工作，2016~2019年兼职荷兰埃因霍温科技大学达西研究中心执行主管。一直从事多孔介质复杂流动与传输的理论和数值研究，其应用背景涉及二氧化碳地质封存、非常规油气开采、氢燃料电池等领域。已在Water Resources Research、Advances in Water Resources、Transport in Porous Media等国际顶级杂志发表论文近20篇。

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石油与天然气工程学院

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2019年12月13日