Publication de 12 numéros par an
ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508
Indexed in
Numerical Investigation of Nonaqueous Phase Liquid Behavior at Heterogeneous Sand Layers Using VODA Multiphase Flow Code
RÉSUMÉ
Interplay between the gravitational and capillary pressure forces at the interfaces of sands with different capillarity properties determines the fate of nonaqueous phase liquids (NAPLs) in the subsurface. Competition of these two forces can be observed on inclined interfaces of homogeneous sand formations. We have developed a multiphase flow code that has been applied to the study of NAPL behavior at the inclined interfaces. This model provides two methods for numerical treatment of sharp interfaces between the sands with different capillarity properties. Numerical results are presented indicating domains of applicability of these methods and their ability to describe discontinuous saturation profiles across the interface. The model is applied for computation of two-phase flow in a layered medium containing an inclined interface between two homogeneous layers with different capillary pressure parameters. As another application of the model, we present results of simulation of NAPL flow in a random medium consisting of small inclined homogeneous blocks of sands. Numerical results are compared to the results of laboratory experiments.
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Wang Shuoliang, Yu Chunlei, Sang Guoqiang, Yu Rongze, Cheng Feng, An oil–water two-phase reservoir numerical simulation coupled with dynamic capillary force based on the full-implicit method, Computers & Mathematics with Applications, 79, 9, 2020. Crossref
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Fučík Radek, Mikyška Jiří, Sakaki Toshihiro, Beneš Michal, Illangasekare Tissa H., Significance of Dynamic Effect in Capillarity during Drainage Experiments in Layered Porous Media, Vadose Zone Journal, 9, 3, 2010. Crossref
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Fučík Radek, Mikyška Jiří, Discontinous Galerkin and Mixed-Hybrid Finite Element Approach to Two-Phase Flow in Heterogeneous Porous Media with Different Capillary Pressures, Procedia Computer Science, 4, 2011. Crossref