Interface dynamics during two phase flow in stratified porous medium

Aniket S. Ambekar, Vivek V. Buwa, Jyoti Phirani

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

Immiscible displacement of a non-wetting fluid by a wetting fluid is important for many fields for example, biomedical devices, paper micro-fluidics, oil reservoirs and water aquifers. In a multi-layered porous medium the displacement velocity and relative position of the layers with respect to each other is significant in determining the flow paths of the fluids. Earlier studies on two-layered porous medium indicate presence of different flow regimes in every layer depending upon the velocity. However, the effect of relative positioning of these layers in different flow regimes is still unknown. In the present work we experimentally show that at low velocity, a capillary regime is developed i.e. the wetting fluid front leads in the least permeable layer, while at high velocity the wetting fluid front leads in the highest permeability layer. At all flow rates, the least permeable layer is found to draw fluid from the high permeability layer due to capillary suction. We also show the effect of relative placement of the layers on the interphase dynamics.

Original languageEnglish
Title of host publicationASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2018
Number of pages8
DOIs
Publication statusPublished - 23 Aug 2018
EventASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2018 - Dubrovnik, Croatia
Duration: 10 Jun 201813 Jun 2018

Publication series

NameASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2018

Conference

ConferenceASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2018
Country/TerritoryCroatia
CityDubrovnik
Period10/06/1813/06/18

Keywords

  • flow regime
  • immiscible displacement
  • layered porous media
  • porous materials
  • two-phase flow
  • wetting
  • fluids
  • permeability
  • microfluidics
  • hydrocarbon reservoirs

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