Noble gases identify the mechanisms of fugitive gas contamination in drinking-water wells overlying the Marcellus and Barnett Shales
Author(s):
Thomas H. Darrah, Avner Vengosh, Robert B. Jackson and Nathaniel R. Warner
Date:
09.2014
Source / Publisher:
PNAS
Key findings:
Analysis on mechanisms that cause elevated hydrocarbon concentrations in drinking water near natural-gas wells
–> Gas geochemistry data implicate leaks through annulus cement (four cases), production casings (three cases), and underground well failure (one case) rather than gas migration induced by hydraulic fracturing deep underground.
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