Emulsions are divided into water-in-oil (W/O) emulsions and oil-in-water (O/W) emulsions which cannot be avoided during the production of crude oil. In this case, the emulsion requires a chemical compound, which is commonly called a demulsifier and reverse demulsifier, in order to separate water and oil in a short time. The demulsifier will reduce the oil content of the oil-in-water emulsion b…