Fracking is a technique involving pumping water and chemicals into shale rock at high pressure to extract gas.
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Fracking is a technique where water and chemicals are pumped into shale rock at high pressure to extract gas.
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Fracking is a controversial process that involves pumping water and chemicals into shale rock at high pressure to extract gas.
Fracking is a technique of shale gas extraction that involves pumping water and chemicals into shale rock at high pressure to extract gas.
Under the process of fracking, oil or gas is extracted from shale rock by pumping a mixture of sand, water and chemicals into the rock at high pressure.
The assertion is that hydraulic fracturing fluids, which are injected at high speed and high pressure to create cracks in the shale rock that traps natural gas, will seep into underground water aquifers.
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Fracking is the process of blasting water at high pressure into shale rock to release oil or gas held within it.
Fracking involves the injection of water containing a surfactant and various other chemicals under high pressure into a source rock e.g. shale, causing the latter to fracture and release natural gas (principally methane).
The underground storage areas are created by removing salt in the rock strata with equipment similar to high pressure water jets.
Fracking involves drilling a borehole before a high-pressure water mixture is directed at the rock to release the gas.
In fracking, a mixture of water, sand and some chemicals is pumped into a well under high pressure to force the gas from the rock.
This year he completed what is believed to be the first ever fracture stimulation procedure in Turkey: injecting a mixture of water and sand at high pressure down the wells to break up rock and release gas.
Fracking uses high-pressure liquid pumped deep underground to fracture shale rock and release gas.
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The drilling technique, which uses sand, water and chemicals under high pressure to extract oil and natural gas from rock formations, has helped Eagle Ford oil production grow by 184% last year compared with 2011, according to the Railroad Commission of Texas, which regulates the state's oil and gas exploration and production.
Fracking is a drilling process that frees gas from deep rock deposits by injecting wells with chemical-laced water at high pressure.
Fracking uses high-pressure mixtures of water, sand or gravel and chemicals to crack rock formations and release oil and natural gas deep underground.
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