Other components of fracturing fluids

Other than high crush proppants, slickwater fracturing fluids are mostly water, generally 99% or more by volume, but gel-based fluids can see polymers and surfactants comprising as much as 7 vol% , ignoring other additives.Other common additives include hydrochloric acid (low pH can etch certain rocks, dissolving limestone for instance), friction reducers, guar gum,biocides, emulsion breakers, emulsifiers, and 2-Butoxyethanol.Radioactive tracer isotopes are sometimes included in the hydrofracturing fluid to determine the injection profile and location of fractures created by hydraulic fracturing.ceramic proppants describe in detail how several tracers are typically used in the same well