Emulsions are caused when oil and water are forced to mix in the presence of an emulsion-stabilizing surfactant. Emulsifying agents are inherent in produced oil and gas condensate, as well as many chemical treatments, such as film-forming corrosion inhibitors. These emulsion-stabilizing surfactants collect at the boundary or interface between the oil and water and make a strong, resilient film that resists breaking. This film prevents the dispersed droplets from coalescing into larger droplets and falling out of the mixture. Halliburton offers customized emulsion breakers for both water-in-oil (regular) and oil-in-water (reverse) emulsions, helping improve oil-water separations while helping maintain sales contract specifications and increasing oil and gas production rates.