Figure 4: Gas and liquid permeability data in the absence of the surfactant, and liquid permeability data in the presence of AOS and Amphosol surfactants in a Bentheimer sandstone; the top figure shows four different relative-permeability curves with different values assigned for Swc. | Scientific Reports

Figure 4: Gas and liquid permeability data in the absence of the surfactant, and liquid permeability data in the presence of AOS and Amphosol surfactants in a Bentheimer sandstone; the top figure shows four different relative-permeability curves with different values assigned for Swc.

From: Effect of Foam on Liquid Phase Mobility in Porous Media

Figure 4

The bottom figure shows a single water relative-permeability curve fitted to all the data points; the parameters are shown in Table 1.

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