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Dynamic effects on capillary pressure-saturation relationships for two-phase porous flow: implications of temperature

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journal contribution
posted on 30.10.2014 by Navraj S. Hanspal, Diganta Das
Work carried out in the last decade or so suggests that the simulators for multiphase flow in porous media should include an additional term, namely a dynamic coefficient, as a measure of the dynamic effect associated with capillary pressure. In this work, we examine the dependence of the dynamic coefficient on temperature by carrying out quasi-static and dynamic flow simulations for an immiscible perchloroethylene–water system. Simulations have been carried out using a two-phase porous media flow simulator for a range of temperatures between 20 and 80 C. Simulation domains represent 3-D cylindrical setups used by the authors for laboratory-scale investigations of dynamic effects in two-phase flow. Results are presented for two different porous domains, namely the coarse and fine sands, which are then interpreted by examining the correlations between dynamic coefficient(s) and temperature, time period(s) required for attaining irreducible water saturation, and the dynamic aqueous/nonaqueous phase saturation and capillary pressure plots. The simulations presented here maintain continuity from our previous work and address the uncertainties associated with the dependency of dynamic coefficient(s) on temperature, thereby complementing the existing database for the characterization of dynamic coefficients and subsequently enabling the users to carry out computationally economical and reliable modeling studies.

Funding

EPSRC (UK) Project GR/S94315/01, "micro-heterogeneity and temperature effects on dynamic capillary pressure–saturation relationships for two-phase flow in porous media".

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

AICHE JOURNAL

Volume

58

Issue

6

Pages

1951 - 1965 (15)

Citation

HANSPAL, N.S. and DAS, D.B., 2012. Dynamic effects on capillary pressure-saturation relationships for two-phase porous flow: implications of temperature. AIChE Journal, 58 (6), pp. 1951 - 1965.

Publisher

© The Authors. AIChE Journal, published by Wiley on behalf of the AIChE.

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/

Publication date

2012

Notes

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

ISSN

0001-1541

Language

en

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