Table 5 Fluid properties at laboratory and reservoir temperatures

Fluid properties at laboratory temperature (25 ˚C)

Properties

Units

FMB brine

Crude oil

Surfactant (TA-2)

Density

g/cm³

1.0171

0.9174

1.0013

API

API^o

22.5

Viscosity

cP

0.97

50.61

4.11

Fluid properties at reservoir temperature (80 ˚C)

Density

g/cm³

0.991

0.883

0.967

API

API^o

23.2

Viscosity

cP

0.75

6.50

1.04