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Issue 4, 2017
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A 2.5-D glass micromodel for investigation of multi-phase flow in porous media

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Abstract

We developed a novel method for fabrication of glass micromodels with varying depth (2.5-D) with no additional complexity over the 2-D micromodels' fabrication. Compared to a 2-D micromodel, the 2.5-D micromodel can better represent the 3-D features of multi-phase flow in real porous media, as demonstrated in this paper with three different examples. Physically realistic capillary snap-off and the formation of isolated residual oil droplets were realized, which is not possible in 2-D micromodels. Droplet size variation during an emulsion flooding was investigated on the 2.5-D micromodel, showing that the droplet size decreases sharply at the inlet, with little change in size downstream of the micromodel. Displacement of light oil with ultra-low interfacial tension (IFT) surfactant was conducted in the 2.5-D micromodel, where we were able to visualize the generation and flowing of a microemulsion phase, which agrees with, and explains observations in experiments of more complex porous media.

Graphical abstract: A 2.5-D glass micromodel for investigation of multi-phase flow in porous media

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Article information


Submitted
03 Dec 2016
Accepted
27 Jan 2017
First published
03 Feb 2017

Lab Chip, 2017,17, 640-646
Article type
Communication

A 2.5-D glass micromodel for investigation of multi-phase flow in porous media

K. Xu, T. Liang, P. Zhu, P. Qi, J. Lu, C. Huh and M. Balhoff, Lab Chip, 2017, 17, 640
DOI: 10.1039/C6LC01476C

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