NDLI: Creation of a dual-porosity and dual-depth micromodel for the study of multiphase flow in complex porous media

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Lab on a Chip Vol -17

Lab on a Chip Vol - 17 Issue - 9

Lab on a Chip Vol - 17 Issue - 8

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The 2016 edition of the Art in Science of MicroTAS

Recent advances in the design of polymeric microneedles for transdermal drug delivery and biosensing

The lab-on-PCB approach: tackling the μTAS commercial upscaling bottleneck

Microfluidic neural probes: in vivo tools for advancing neuroscience

Open-channel, water-in-oil emulsification in paper-based microfluidic devices

Device and programming abstractions for spatiotemporal control of active micro-particle swarms

Biophysical isolation and identification of circulating tumor cells

Creation of a dual-porosity and dual-depth micromodel for the study of multiphase flow in complex porous media

The microfluidic nebulator: production of sub-micrometer sized airborne drops

Simple microfluidic formation of highly heterogeneous microfibers using a combination of sheath units

Combination of microfluidic high-throughput production and parameter screening for efficient shaping of gold nanocubes using Dean-flow mixing

Formation of surface nanodroplets facing a structured microchannel wall

Power-free, digital and programmable dispensing of picoliter droplets using a Digit Chip

Bubble-based acoustic micropropulsors: active surfaces and mixers

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Lab on a Chip Vol - 17 Issue - 7

Lab on a Chip Vol - 17 Issue - 6

Lab on a Chip Vol - 17 Issue - 5

Lab on a Chip Vol - 17 Issue - 4

Lab on a Chip Vol - 17 Issue - 3

Lab on a Chip Vol - 17 Issue - 2

Lab on a Chip Vol - 17 Issue - 1

Creation of a dual-porosity and dual-depth micromodel for the study of multiphase flow in complex porous media

Content Provider	Royal Society of Chemistry (RSC)
Author	Yun, Wonjin Kovscek, Anthony R. Ross, Cynthia M. Roman, Sophie
Copyright Year	2017
Abstract	Silicon-based microfluidic devices, so-called micromodels in this application, are particularly useful laboratory tools for the direct visualization of fluid flow revealing pore-scale mechanisms controlling flow and transport phenomena in natural porous media. Current microfluidic devices with uniform etched depths, however, are limited when representing complex geometries such as the multiple-scale pore sizes common in carbonate rocks. In this study, we successfully developed optimized sequential photolithography to etch micropores (1.5 to 21 μm width) less deeply than the depth of wider macropores (>21 μm width) to improve the structural realism of an existing single-depth micromodel with a carbonate-derived pore structure. Surface profilimetry illustrates the configuration of the dual-depth dual-porosity micromodel and is used to estimate the corresponding pore volume change for the dual-depth micromodel compared to the equivalent uniform- or single-depth model. The flow characteristics of the dual-depth dual-porosity micromodel were characterized using micro-particle image velocimetry (μ-PIV), relative permeability measurements, and pore-scale observations during imbibition and drainage processes. The μ-PIV technique provides insights into the fluid dynamics within microfluidic channels and relevant fluid velocities controlled predominantly by changes in etching depth. In addition, the reduction of end-point relative permeability for both oil and water in the new dual-depth dual-porosity micromodel compared to the equivalent single-depth micromodel implies more realistic capillary forces occurring in the new dual-depth micromodel. Throughout the imbibition and drainage experiments, the flow behaviors of single- and dual-depth micromodels are further differentiated using direct visualization of the trapped non-wetting phase and the preferential mobilization of the wetting phase in the dual-depth micromodel. The visual observations agree with the relative permeability results. These findings indicate that dual-porosity and dual-depth micromodels have enhanced physical realism that is pertinent to oil recovery processes in complex porous media.
Starting Page	1462
Ending Page	1474
Page Count	13
File Format	HTM / HTML PDF
ISSN	14730197
Volume Number	17
Issue Number	8
Journal	Lab on a Chip
DOI	10.1039/c6lc01343k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Chemical milling Transport phenomena Fluid dynamics Micrometre Imbibition Hydraulic conductivity Porosity Photolithography
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Biochemistry Bioengineering Biomedical Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Liquid–liquid phase separation: characterisation of a novel device capable of separating particle carrying multiphase flows

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

Single layer porous media with entrapped minerals for microscale studies of multiphase flow

Pore-Scale Dynamics of Liquid CO2–Water Displacement in 2D Axisymmetric Porous Micromodels Under Strong Drainage and Weak Imbibition Conditions: High-Speed μPIV Measurements

Time analysis of the three characteristic behaviours of dual-porosity media. I: fluid flow and solute transport

A microscopic particle image velocimetry method for studying the dynamics of immiscible liquid–liquid interactions in a porous micromodel

Microfluidic Study of Drainage and Imbibition in Porous Media: Definition of Amott Indices

Experimental and Numerical Investigations of Bubble Dynamics in Porous and Non-Porous Media

A toner-mediated lithographic technology for rapid prototyping of glass microchannels

Creation of a dual-porosity and dual-depth micromodel for the study of multiphase flow in complex porous media

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