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Hydraulic fracturing [a] is a well stimulation technique involving the fracturing of formations in bedrock by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep rock formations through which natural gas, petroleum ...
Environmental Protection Agency illustration of the water cycle of hydraulic fracturing. Fracking in the United States began in 1949. [1] According to the Department of Energy (DOE), by 2013 at least two million oil and gas wells in the US had been hydraulically fractured, and that of new wells being drilled, up to 95% are hydraulically fractured.
Lichtenberg branching figure in leopardwood. Fractal burning, Lichtenberg burning or wood fracking refers to a technique where a Lichtenberg figure is burnt into wood using high voltage electricity.
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The Fracturing Responsibility and Awareness of Chemicals Act (H.R. 1084, S. 587, dubbed as the FRAC Act) was a 2009 legislative proposal in the United States Congress to define hydraulic fracturing as a federally regulated activity under the Safe Drinking Water Act. The proposed act would have required the energy industry to disclose the ...
In the US, about 750 compounds have been listed as additives for hydraulic fracturing, also known as ingredients of pressurized fracking fluid, [9] in an industry report to the US Congress in 2011 [10] [11] The following is a partial list of the chemical constituents in additives that are used or may have been used in fracturing operations. [12]
Lifespan of hydraulic fracturing: The lifecycle of shale gas development can vary from a few years to decades and occurs in six major stages, as described by Natural Resources Canada (NRC), assuming all approvals from the various regulatory authorities have been obtained:
Frac module, a format for the MOTM modular synthesizer; Frac pacs, packaged ground coffee for coffee machines; Frac Press, an imprint of OmniScriptum devoted to the reproduction of Wikipedia content; Frac(R), mathematical notation for field of fractions, the smallest field in which an integral domain can be embedded
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