What is Fracking
Fracking is short for ‘high volume high volume hydraulic fracturing’, an extraction process designed to release trapped gas from shale rock. Firstly, a well is drilled vertically to about 7-10,000 ft, then drilled horizontally for up to two miles.
A mixture of water, chemicals and sand is then pumped down the well at very high pressure. This creates cracks in the shale, allowing trapped gas to travel up the well to the surface, along with large quantities of contaminated waste water.
Coal Bed Methane production is a very similar process to fracking, but involves extracting gas from coal seams instead of shale rock.