Test aims to identify shale gas hazard in groundwater
Friday, April 22, 2016 - 09:20
in Earth & Climate
A test has been developed to check for contamination of shallow groundwater from unconventional gas extraction techniques, such as fracking. Methods used for shale gas extraction include hydraulic fracturing, commonly known as fracking, in which shale rocks below ground are split with high-pressure fluids to release gas that is recovered for fuel. Coal bed methane is extracted from deep coal seams by drilling into the coal to reduce the pressure and release gas.