Environmental Engineering Reference
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90
80
70
CuO
NiO
Fe2O3
60
50
40
30
20
10
0
0
1
2 3
Number of injected pore volumes
4
5
6
Figure 4.3
Displacement Efficiency using sequential application of EK-assisted
nanoparticles (Haroun et al., 2012)
90
80
70
60
CuO
NiO
Fe2O3
50
40
30
20
10
0
0
1
2 3
Number of injected pore volumes
4
5
6
Figure 4.4
Displacement Efficiency using simultaneous application EK-assisted nano-
flooding in water-wet carbonate core plugs (Haroun et al., 2012)
It was found that oil-wet core plugs experiments require approximately
10 times the water consumption than that of water-wet core plugs at room
temperature (figure 4.6). In addition, there was a higher yield in oil-wet res-
ervoirs as EK-assisted sequential nano-EOR produced 60% of the original
displacement efficiency in oil-wet core plugs, while producing 35% of orig-
inal displacement efficiency factor in water-wet core plugs. However, the
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