Modeling Subsurface Petroleum Hydrocarbon Transport
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In a three phase water/NAPL/air system the pore space is occupied by all three fluids. A three-phase distribution would represent the vadose zone. | |
There is again an order of preferential wetting. The pieces of the three-phase puzzle fit together from what we've seen for two-phase systems. Let's review:
In the photograph, the NAPL (red) can be seen to be coating the water (blue), and is surrounded by air. Now air occupies the largest pores; water still has the smallest, and NAPL forms films coating the water. In some places NAPL accumulates. |
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The color photograph on this page is reprinted with permission from Dense Chlorinated Solvents, Friedrich Schwille, Translated by James F. Pankow, 1988, Copyright CRC Press, Boca Raton, Florida c 1988 |
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