Experimental observations of multiphase flow in heterogeneous porous media

Kueper, Bernard H.; Abbott, Wesley; Farquhar, Grahame J.

doi:10.1016/0169-7722(89)90007-7

Cited by 203 publications

(85 citation statements)

References 9 publications

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“…HFE-7200 is an extremely difficult liquid to dye, and at the time of this study a suitable dye was not available; visual confirmation of the NAPL flow pathway after the infiltration experiment could not be achieved. Studies by Schwille (1988), Kueper et al (1989) and Oostrom et al (1999) do however indicate that in a saturated homogeneous coarse-grained porous medium DNAPL would be expected to migrate downwards through the column with limited lateral spreading, either as a front or as fingers. In this case, given the density (d) and viscosity (μ) of the DNAPL used, i.e.…”

Section: Experimental Designmentioning

confidence: 97%

Noninvasive monitoring of DNAPL migration through a saturated porous medium using electrical impedance tomography

Chambers

Loke

Ogilvy

et al. 2004

Journal of Contaminant Hydrology

113

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Electrical impedance tomography was used to monitor the movement of a fluorinated hydrocarbon DNAPL through a saturated porous medium within a laboratory column. Impedance measurements were made using a horizontal plane of twelve electrodes positioned at regular intervals around the centre of the column. A 2D inversion algorithm, which incorporated the cylindrical geometry of the column, was used to reconstruct resistivity and phase images from the measured data. Differential time-lapse images of DNAPL movement past the plane of electrodes were generated by the cell-bycell subtraction of resistivity and phase baseline models from those associated with the DNAPL release stage of the experiment.The DNAPL pulse was clearly delineated as resistive anomalies in the differential time-lapse resistivity images. The spatial extent of the resistive anomalies indicated that, in addition to vertical migration, some lateral spreading of the DNAPL had occurred. Residual contamination could be detected after quasi-static conditions were re-established. Residual DNAPL saturation was estimated from the resistivity model data by applying Archie's second equation. Despite significant measured phase changes due to DNAPL contamination, the differential phase images revealed only weak anomalies associated with DNAPL flow; these anomalies could be seen only in the initial stages of the experiment during peak flow through the plane of electrodes.

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Section: Experimental Designmentioning

confidence: 97%

Noninvasive monitoring of DNAPL migration through a saturated porous medium using electrical impedance tomography

Chambers

Loke

Ogilvy

et al. 2004

Journal of Contaminant Hydrology

113

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“…In this paradigm, the DNAPL is the nonwetting liquid that displaces water as it moves through zones of higher permeability. The sand tank experiments conducted by Kueper et al [1989] at the University of Waterloo epitomized this conceptual model but did not allow measurement of in situ DNAPL saturations. Subsequently, researchers have developed an improved experimental technique that relies upon gamma attenuation devices to measure the in situ saturations at the local scale [Illangasekare et al, 1995;Oostrom et al, 1999].…”

Section: Introductionmentioning

confidence: 99%

Control of downward migration of dense nonaqueous phase liquid during surfactant flooding by design simulations

Jin

Hirasaki

Jackson³

et al. 2007

Water Resources Research

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[1] Sand tank experiments have been used to study a surfactant-enhanced aquifer remediation (SEAR) process during which downward migration of dense nonaqueous phase liquid (DNAPL) has been observed in some of these experiments. Through numerical simulation of one particular sand tank experiment conducted at Sandia National Laboratories we show in this paper that this downward migration of DNAPL can be anticipated and controlled even in a very difficult geosystem environment. The results indicate that design simulations play a significant role in the design of either laboratory column experiments or field SEAR application and that surfactant flooding can be accomplished without loss of hydraulic control of DNAPL under typical alluvial aquifer/ aquitard conditions and with only minor vertical mobilization within the aquifer (i.e., <1% of the DNAPL present). The design simulations are considered as a sensitivity analysis exercise in which the heterogeneity in the permeability field and DNAPL saturation and other critical variables are varied to produce a robust design. The simulation results indicate that the significant downward mobilization of DNAPL as observed in the Sandia sand tank experiment is a result of the use of high-permeability materials, weak viscous (horizontal) forces, and low surfactant solubilization potential. The downward mobilization of DNAPL is a design issue to be evaluated and controlled rather than an inevitable consequence of the use of surfactants to remove DNAPL.

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“…The presented numerical scheme is realized in an object oriented scientific software tool, OpenGeoSys, developed by the authors, and has been verified by several classic benchmarks such as Buckley-Leverett [63], Liakopoulos [64], McWhorter-Sunada [65], Kueper et al [62,66] (for the OpenGeoSys applications cf. [67]), and the DECOVALEX project [68].…”

Section: Numerical Schemementioning

confidence: 92%

Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO₂Injection into Deep Saline Aquifers

Goerke

Park

Wang

et al. 2011

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Résumé -Simulation numérique des processus hydromécaniques polyphasiques provoqués par l'injection de CO 2 dans des aquifères salins profonds -Cet article présente le concept de la modé-lisation ainsi que la simulation numérique d'écoulement biphasé lors de l'injection de CO 2 dans des aquifères salins profonds. L'étude se concentre sur des processus à court terme dans la proximité de puits d'injection dans les conditions isothermes. Les équations différentielles principales sont dérivées des équations de bilan de masse et de la quantité de mouvement, et elles sont complétées par des relations constitutives pour des phases solides et fluides ainsi que leur interaction. Les conditions de contrainte sont définies pour la saturation partielle, les fractions de pression de CO 2 et l'eau salée. Pour caractériser l'état de contrainte dans la matrice solide, le principe de contrainte effective est appliqué. Le problème couplé considéré est résolu en utilisant le logiciel scientifique interne OpenGeoSys (un logiciel d'éléments finis libre d'accès) et vérifié avec des exemples pour les processus concernés. Abstract -Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO 2 Injection into Deep Saline Aquifers -In this paper, the conceptual modeling and the numerical simulation of two-phase flow during CO 2 injection into deep saline aquifers is presented. The work focuses on isothermal short-term processes in the vicinity

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Experimental observations of multiphase flow in heterogeneous porous media

Cited by 203 publications

References 9 publications

Noninvasive monitoring of DNAPL migration through a saturated porous medium using electrical impedance tomography

Noninvasive monitoring of DNAPL migration through a saturated porous medium using electrical impedance tomography

Control of downward migration of dense nonaqueous phase liquid during surfactant flooding by design simulations

Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO₂Injection into Deep Saline Aquifers

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Experimental observations of multiphase flow in heterogeneous porous media

Cited by 203 publications

References 9 publications

Noninvasive monitoring of DNAPL migration through a saturated porous medium using electrical impedance tomography

Noninvasive monitoring of DNAPL migration through a saturated porous medium using electrical impedance tomography

Control of downward migration of dense nonaqueous phase liquid during surfactant flooding by design simulations

Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO2Injection into Deep Saline Aquifers

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Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO₂Injection into Deep Saline Aquifers