Wiktionary
n. wastewater that is left over after its use in the extraction process of oil or gas.
Wikipedia
Produced water is a term used in the oil industry to describe water that is produced as a byproduct along with the oil and gas. Oil and gas reservoirs often have water as well as hydrocarbons, sometimes in a zone that lies under the hydrocarbons, and sometimes in the same zone with the oil and gas.
Oil wells sometimes produce large volumes of water with the oil, while gas wells tend to produce water in smaller proportion.
To achieve maximum oil recovery, waterflooding is often implemented, in which water is injected into the reservoirs to help force the oil to the production wells. The injected water eventually reaches the production wells, and so in the later stages of waterflooding, the produced water proportion ("cut") of the total production increases.
Usage examples of "produced water".
His fingers found the oblong again and experimented, pushing here and there, The temperature shifted quickly and he found the spot that produced water of suitable tepidity.
Fresh enough to drink& and the other wheel produced water as hot as if it had just come from a kettle.
Instead it just closed its eyes and produced water from them, threw its head back, opened its mouth wide and emitted an animal screech that hurt Vaintè.
She understood at once my signs of thirst and quickly produced water and coffee, of which I drank until I was ashamed.
After that there had been months of waiting, then six months of training, study, simulators, tests, exercises, presentations-all so she could live hundreds of miles above the earth's surface, breathing recirculated air, eating irradiated food, drinking chemically produced water and coping with microgravity.
Instead it just closed its eyes and produced water from them, threw its head back, opened its mouth wide and emitted an animal screech that hurt Vaintè.