Relating solute and gas dispersion in granite at different transport velocities

L. Pugliese; T. G. Poulsen; S. Straface

doi:10.1061/9780784412992.259

Relating solute and gas dispersion in granite at different transport velocities

L. Pugliese, T. G. Poulsen, S. Straface

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Dispersion is a key process controlling gas and solute transport in porous media. Performing dispersion tracer tests for solutes is generally much more time consuming than for gases. Ability to estimate solute dispersion based on gas dispersion data is therefore advantageous. The aim of this study was to investigate the relationship between solute and gas dispersion in selected porous media to develop a procedure for estimating solute dispersion from gas dispersion. Solute (NaCl) and gas (O2) breakthrough curves were measured at different fluid (water and gas) velocities (at identical Reynolds numbers for the two fluids). A commercial crushed granite, available in multiple particle sizes, was used as porous medium. NaCl and O2 dispersion coefficients were determined from measured breakthrough data and used to calculate solute and gas dispersivity as a function of particle size (Dm) and particle size range (R). Both solute and gas dispersivity increased with increasing R, and decreasing Dm. A simple relationship between dispersivities was found.

Original language	English
Title of host publication	Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
Pages	2202-2211
Number of pages	10
DOIs	https://doi.org/10.1061/9780784412992.259
State	Published - 2013
Externally published	Yes
Event	5th Biot Conference on Poromechanics, BIOT 2013 - Vienna, Austria Duration: 10 Jul 2013 → 12 Jul 2013

Publication series

Name	Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics

Conference

Conference	5th Biot Conference on Poromechanics, BIOT 2013
Country	Austria
City	Vienna
Period	10/07/13 → 12/07/13

Access to Document

10.1061/9780784412992.259

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title = "Relating solute and gas dispersion in granite at different transport velocities",

abstract = "Dispersion is a key process controlling gas and solute transport in porous media. Performing dispersion tracer tests for solutes is generally much more time consuming than for gases. Ability to estimate solute dispersion based on gas dispersion data is therefore advantageous. The aim of this study was to investigate the relationship between solute and gas dispersion in selected porous media to develop a procedure for estimating solute dispersion from gas dispersion. Solute (NaCl) and gas (O2) breakthrough curves were measured at different fluid (water and gas) velocities (at identical Reynolds numbers for the two fluids). A commercial crushed granite, available in multiple particle sizes, was used as porous medium. NaCl and O2 dispersion coefficients were determined from measured breakthrough data and used to calculate solute and gas dispersivity as a function of particle size (Dm) and particle size range (R). Both solute and gas dispersivity increased with increasing R, and decreasing Dm. A simple relationship between dispersivities was found.",

author = "L. Pugliese and Poulsen, {T. G.} and S. Straface",

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language = "英语",

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Pugliese, L, Poulsen, TG & Straface, S 2013, Relating solute and gas dispersion in granite at different transport velocities. in Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics. Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics, pp. 2202-2211, 5th Biot Conference on Poromechanics, BIOT 2013, Vienna, Austria, 10/07/13. https://doi.org/10.1061/9780784412992.259

Relating solute and gas dispersion in granite at different transport velocities. / Pugliese, L.; Poulsen, T. G.; Straface, S.

Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics. 2013. p. 2202-2211 (Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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