Slickwater

From Wikimarcellus

Slickwater or slick water fracturing is a method or system of hydro-fracturing which reportedly involves injecting friction reducers, biocides, surfactants and scale inhibitors. For example methanol and naphthalene can be used for biocides. Hydrochloric acid and ethylene glycol may be utilized as scale inhibitors. Butanol and ethylene glycol monobutyl ether (2-BE) are used in surfactants. It typically uses more water than earlier fracturing methods--between one and five million gallons per fracing operation.

Slick water fracturing was first used in the Barnett Shale. Mitchell Energy introduced the very first slickwater frac. It utilized 800,000 gallons of water and 200,000 lbs. of sand as a proppant.