期刊
LAB ON A CHIP
卷 22, 期 24, 页码 4974-4983出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1lc01115d
关键词
-
类别
资金
- Canada First Research Excellence Fund (CFREF)
- Future Energy System at the University of Alberta [FES T02P05]
- Canada Foundation for Innovation (CFI)
- Equinor [6365]
- Norwegian Academy of Science and Letters [6365]
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Alberta Innovates (AI)
Surface wettability plays a critical role in oil recovery and the displacement efficiency of viscous oil is greatly influenced by the wettability of the porous network. Hydrophilic surfaces promote higher oil recovery and result in a more efficient displacement pattern compared to hydrophobic surfaces.
Surface wettability has a crucial impact on drop splashing, emulsion dynamics, slip flow for drag reduction, fluid-fluid displacement, and various microfluidic applications. Targeting enhanced oil recovery (EOR) applications, we experimentally investigate the effect of matrix wettability on the invasion morphology and sweep efficiency of viscous oil displaced by different aqueous floods using microfluidics, whose porous network mimics a sandstone structure. For comparison, systematic experiments of the same oil-flood pair are done in both hydrophilic and hydrophobic microfluidic chips. The results show that the hydrophilic microfluidic rock has a remarkable increase in oil recovery by a factor of approximate to 1.44, compared to the hydrophobic case. In addition, we observe a more pronounced lateral growth of the displacing pattern of aqueous flood for the hydrophilic surface. Finally, we quantitatively explain the increasing factor in the recovery rate and finger width for the hydrophilic vs. hydrophobic rock-liked porous networks by incorporating the contact angle into a scaling analysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据