報告題目：Capillarity dynamics of spontaneous imbibition in porous media: from pore-scale to continuum scale

報告人：秦朝中 教授

時 間：2019年12月20日（周五）下午15:00

地 點：國家重點實驗室A403學術報告廳

報告人單位：重慶大學資源與安全學院

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報告內容：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.

報告人簡介：重慶大學百人計劃特聘研究員、博士生導師（2019.10~至今）。2005年本科畢業于西安交通大學力學系，2008年獲得中國科學技術大學流體力學碩士學位，2013年獲得荷蘭烏特列支大學地球科學系博士學位。先后在荷蘭烏特列支大學（2012.10~2016.10）和荷蘭埃因霍溫科技大學（2016.10~2019.9）從事博士后研究工作，2016~2019年兼職荷蘭埃因霍溫科技大學達西研究中心執行主管。一直從事多孔介質復雜流動與傳輸的理論和數值研究，其應用背景涉及二氧化碳地質封存、非常規油氣開采、氫燃料電池等領域。已在Water Resources Research、Advances in Water Resources、Transport in Porous Media等國際頂級雜志發表論文近20篇。

油氣藏地質及開發工程國家重點實驗室

西南石油大學科研處

石油與天然氣工程學院

SPE成都分部

西南石油大學SPE學生分會

2019年12月13日