“HimSurf S” is a hybrid surfactant which has a higher efficiency than conventional micellar surfactants. Modified particle of silicon dioxide, with size of 4 to 6 nm, serves for the nucleus of a micella.
It is designed for oil recovery enhancement by way of affecting residual oil saturation.
The technology is recommended for use in terrigenous low permeable reservoirs and is implemented by way of injecting water solutions of “HimSurf S” into injection wells. Higher washing capacity of the reagent can affect the rheology properties of oil phase and enhance the filtration quality of viscous oils in wells, not having formation pressure maintenance. Recommended dosage of it is from 0.2 to 5%.