Doe/netl-2012/1540 Mobility And Conformance Control For Carbon Dioxide Enhanced Oil Recovery (Co2-Eor) Via Thickeners, Foams, And Gels - U.s. Department Of Energy Page 125

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Figure 10.20.Foam flow in different permeability sandstone over various flow rates [Gauglitz,
Friedman, Kam and Rossen, 2002]
Only a few cases of shear thickening have been reported for flow rates of 1–100 ft./day in very
high permeability systems. For example, this behavior has been observed in sandpack [Bernard
and Holm, 1964] and micromodel [Huh et al., 1989] systems.
In a study aimed at assessing the effect of flow rate on foam mobility in porous media that were
2
1.27 cm in diameter (1.266cm
cross section), as the flow rate increased from 4.2 to 8.4 to 16.8
3
cm
/hr. (2.61, 5.22, 10.44 ft./day superficial velocity) the foam mobility generally increased by a
factor of roughly 2–3 in Berea sandstone cores, as shown in Figure 10.21 [Chang and Grigg,
1999].
Figure 10.21. Mobility of foam as a function of quality in a 139 mD Berea sandstone core [Chang
and Grigg, 1999]
and consistently increased by a factor of 2–4 in a fritted glass core as shown in Figure 10.21
[Chang and Grigg, 1998].
94

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