Produced water is water that comes back out of the ground after the well has been completed. It's water, or typically a brine solution, that comes out of the well during the production stage of the well.
- - 1562 - [November 29, 2013] - About Money, Wendy Lyons Sunshine - "Waste Water Byproducts of Shale Gas Drilling"
- "During hydrofracking, millions of gallons of water mixed with industrial chemicals and proppant (sand or ceramic particles) are blasted into the well bore to release natural gas. In the Marcellus Shale formation in the northeastern
U.S., for example, fracking a single well can require 1 million to 5 million gallons of this water mixture.
Waste water that comes back up out of a shale gas well goes by two names: flowback and produced water. These terms are often used interchangeably, but they have slightly different meanings"