Application of nano particle for enhancement of foam stability in the presence of crude oil: Experimental investigation

The results show that the solution containing Cetyltrimethyl ammonium bromide (CTAB) and nano silica is undispersed, so the foam studies are not carried out for this system. But the solution containing Sodium dodecyl sulfate (SDS) and nano silica is completely dispersed and generates a desirable foam. In addition, nano silica increases the foamability and foam stability of the SDS solution. Regarding the effects of crude oil, the presence of crude oil reduces foam stability and by increasing oil saturation, the stability reduction is observed to be greater. It is also observed that by increasing oil viscosity, foam stability and foam properties improve.