• 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.

    FORBES: Magazine Article

  • About 25, 000 wells a year are being fracked, a process in which water, chemicals and sand are injected at high pressure underground to release trapped natural gas.

    NPR: Report: Flaws In EPA Drilling Pollution Data

  • As the drill progresses through the rock and sand below the seabed, the pressure of the mud in the drill string must be kept within a limited range.

    ECONOMIST: Inside story

  • It meets the highest standards of resistance to dust, sand, shock, vibrations, low pressure, high and low temperature, rain and long-term moisture.

    FORBES: Extreme Cell Phones Get More So

  • Fracking uses high-pressure mixtures of water, sand or gravel and chemicals to crack rock formations and release oil and natural gas deep underground.

    NPR: Scenic, Struggling S. Illinois Braces For Oil Rush

  • It extracts oil from the ground using a method called fracking - pumping down a mixture of sand, water and chemicals at high pressure.

    BBC: US to become 'world's biggest oil producer'

  • They had been protesting at a site in Hesketh Bank operated by energy firm Cuadrilla which was given a licence in 2008 to extract gas by pumping water, sand and chemicals into shale rock at pressure.

    BBC: Hesketh Bank fracking rig protesters guilty of trespass

  • 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.

    WSJ: From Oil, a Land Rush��WSJ Mansion

  • Hydraulic fracturing pumps many thousands of gallons of mainly water and sand, with a few chemicals, at high pressure into tight gas-bearing shale deposits (hardened muds), creating cracks that allow gas to flow back up the well to the surface ( Shale Shock).

    FORBES: The Fracking Solution Is A Good Cement Job

  • 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.

    BBC: Shale will free US from oil imports, says ex-BP boss

  • 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.

    BBC: Gas fracking: Ministers approve shale gas extraction

  • Carbo Ceramics ( CRR - news - people )(CRR, 73) , a Houston firm that makes various forms of "proppant, " particles (sand or a synthetic substitute) injected along with the fracking fluid to keep the fissures propped open after the pressure is withdrawn.

    FORBES: Energy Under Our Feet

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