How does fracking work?

The basics process of hydraulic-fracturing

Hydraulic fracturing is a specific technique used by drilling companies to extract oil and gas from geological formations deep beneath the earth’s surface.  The method involves breaking, or fracturing, the rocks (e.g. shale, sandstone etc.) that contain hydrocarbons, in order to release the oil and gas.

The typical process involves drilling an extremely deep well to a target formation a mile or two beneath the surface.  If a horizontal well is being drilled, the well would then turn 90 degreees so that it runs horizontally to the surface for a few thousand feet, remaining in the target formation.   The well is then lined with impermeable concrete, and explosives are dropped down the well in order to make perforations in the well at the depth of the target formation.  Then, millions, of gallons of water, sand and chemicals are injected at high pressure into the well, causing fissures and cracks to form in the source rock where the well was perforated.  The sand keeps the cracks open so that oil and gas can flow from the rock and up the well for recovery.

  • Austin Akers

    Fracking can be in 100% of cases, and is in 99.99% of cases done safely and effectively, and promotes our profitable, responsible future as a country. Fracking is something that supports millions of jobs in the oil and gas industry, and all industries that indirectly support and are supported by the oil and gas industry. Take a deeper look at this practice, and you will find that the facts (not the sensationalist misrepresentation that dominates the media) are a great basis on which to embrace fracking as something good for people, the environment, and the future.

  • Kim Triolo Feil

    Why don’t the frackers flow back the topflow into closed, pressurized, ventless tanks? In Urban Drilling in Arlington, they flow bakc into open hatch tanks and let the VOC’s and frack chemicals and those gasses waft into the neighborhoods.

  • http://elementalsupplies.com/ David Alston

    This all natural, green product that has been on the market for over 20 years
    helps so many drilling and fracking operations protect the environment
    and save money on clean up. It also absorbs hydrochloric acid solutions
    often used in fracking operations. We want to make the industry aware. http://www.youtube.com/watch?v=f8UzApUcGPg

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