Miscible Displacement in an Unsaturated Glass Bead Medium

Authors:
  • HKH. K. Krupp
    H. K. Krupp
  • DED. E. Elrick
    D. E. Elrick
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Abstract
A series of miscible displacement experiments was conducted in an unsaturated glass bead medium maintained at a constant average water content during each displacement. The variation in the form of the breakthrough curve with decreasing water content was not large and was not related in a simple way to the water content; however, there was a consistent shift of the breakthrough curve to the left of the relative concentration value of 0.5 and 1 pore volume and a long tail or slow approach to the final relative concentration of 1.0. Some of these effects may be attributed to the presence of ‘stagnant’ liquid in the pores.

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