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the United States Geological Survey has released a report that links a series of earthquakes in Oklahoma last January to a fracking operation underway there... Our analysis showed that shortly after hydraulic fracturing began small earthquakes started occurring, and more than 50 were identified, of which 43 were large enough to be located.
Cuadrilla Resources, a British energy company, recently admitted that its hydraulic fracturing operations “likely” caused an earthquake in England.
Originally posted by NISMOALTI
ok i have seen a lot of threads about fracking and i have some questions. how high of pressure are they using to push the fluid in the ground? when u inject the fluid under ground, how big of an aria does it affect under ground and on the surface when the crust shifts casing an earthquake?
just a few questions i keep thinking about wondering if this earthquake was caused by a mining or if it is something naturally o curing
Fracturing equipment operates over a range of pressures and injection rates, and can reach up to 100 MPa (15,000 psi) and 265 L/s (100 barrels per minute).
While hydraulic fracturing is many times performed in vertical wells, today it is more often performed in horizontal wells. Horizontal drilling involves wellbores where the terminal drillhole is completed as a 'lateral' that extends parallel with the rock layer containing the substance to be extracted. For example, laterals extend 1,500 to 5,000 feet in the Barnett Shale basin. In contrast, a vertical well only accesses the thickness of the rock layer, typically 50–300 feet.