RECYCLING PRODUCED WATER Hydraulic fracturing is water intensive, and operators look to reduce the use of fresh water by recycling the maximum amount of produced water possible. Working closely with a service company and operator, Nalco Champion developed a salt-tolerant, water-based friction reducer that does just that, offering environmental, economic, and operational advantagesOur innovative friction reducer decreased fresh water consumption. over previous technology. Recycling produced water depends on the ability of chemical additives in the fracturing fluid to tolerate high levels of total dissolved solids (TDS)—a quality not found in the industry-standard inverse-emulsion friction reducers. In the Marcellus Shale, operators often added an external surfactant to the friction reducer,

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