New insights into flow physics in the EOR process based on 2.5D reservoir micromodels
作者： Fuwei Yu , Hanqiao Jiang , Fei Xu , Zhen Fan , Hang Su
DOI: 10.1016/J.PETROL.2019.106214
关键词:
摘要: Abstract In this paper, a new fabrication method was reported for establishment of 2.5D reservoir micromodel, which incorporated 3D geometry porous media and visualization 2D microfluidic chips. Flow physics such as imbibition, rison rheon were visualized in the micromodel through water flooding experiments water-wet oil-wet micromodels. Corresponding results demonstrated strong capacity presented to mimic real media. Besides, four theoretical patterns concerning residual oil distributions obtained based on flooding, surfactant polymer experiments. Furthermore, imbibition Winsor I type system investigated, accompanied by explanation two major enhanced recovery (EOR) mechanisms, namely microemulsion solubilization, confirmed assumptions made core
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