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23/1/2017, · Hydraulic fracturing, or ,fracking,, is the procedure of creating fractures in shale, coalbed and tight-sand formations by injecting fluid (such as ,water,, oil, or propane) into cracks to force them further open. This enlarges fissures which allow more oil and gas (methane) to flow out of the rock and
The hydraulic fracturing ,water, cycle has five stages: each stage is defined by an activity involving ,water, that supports hydraulic fracturing. The stages and activities of the hydraulic fracturing ,water, cycle include:
The amount of fresh ,water, used in ,fracking, a single shale gas well varies greatly, depending on the size of the well and the amount of fracturing that has to be done to release the gas: industry and regulatory sources give figures that range from approximately 7.5 million to 20 million litres (2 million to 5 million gallons)—roughly equivalent to the ,water, contained in three to eight Olympic ...
Fracking, fluid is 99.5% ,water, and sand. 0.5% is made up of safe chemical additives, most of which are found in common household products, like toothpaste and makeup remover, or in the foods you eat. Colorado was the first state to require that producers disclose all chemicals—including their concentrations—to state regulators.
Thus ,fracking, can pose a threat to local ,water, resources, especially in areas where ,water, is already scarce like the Barnett shale in Texas. In the Marcellus Shale region, the most expansive shale play in the United States, 2 to 10 million gallons of ,water, are needed every time a well is fractured.