期刊
ADVANCES IN WATER RESOURCES
卷 62, 期 -, 页码 356-369出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.advwatres.2013.09.014
关键词
Pore-scale model; Porous media flow displacement; Smoothed particle hydrodynamics; Viscous fingering; Capillary fingering
资金
- Pacific Northwest National Laboratory (PNNL)'s Carbon Sequestration Initiative under its Laboratory Directed Research and Development Program
- Chinese Academy of Science
- PNNL
- National Energy Technology Laboratory
- Advanced Scientific Computational Research Program of the US Department of Energy (DOE)
- DOEs Office of Biological and Environmental Research at PNNL
We have conducted a series of high-resolution numerical experiments using the Pair-Wise Force Smoothed Particle Hydrodynamics (PF-SPH) multiphase flow model. First, we derived analytical expressions relating parameters in the PF-SPH model to the surface tension and static contact angle. Next, we used the model to study viscous fingering, capillary fingering, and stable displacement of immiscible fluids in porous media for a wide range of capillary numbers and viscosity ratios. We demonstrated that the steady state saturation profiles and the boundaries of viscous fingering, capillary fingering, and stable displacement regions compare favorably with micromodel laboratory experimental results. For a displacing fluid with low viscosity, we observed that the displacement pattern changes from viscous fingering to stable displacement with increasing injection rate. When a high viscosity fluid is injected, transition behavior from capillary fingering to stable displacement occurred as the flow rate was increased. These observations are also in agreement with the results of the micromodel laboratory experiments. (C) 2013 Elsevier Ltd. All rights reserved.
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