Methane in groundwater before, during, and after hydraulic fracturing of the Marcellus Shale
Barth-Naftilan E, Sohng J, Saiers JE. Methane in groundwater before, during, and after hydraulic fracturing of the Marcellus Shale. Proceedings Of The National Academy Of Sciences Of The United States Of America 2018, 115: 6970-6975. PMID: 29915033, PMCID: PMC6142237, DOI: 10.1073/pnas.1720898115.Peer-Reviewed Original ResearchShale gas developmentGroundwater qualityGroundwater pressureMonitoring wellsMethane concentrationMarcellus ShaleRegional flow systemLocal flow systemsMultilevel monitoring wellsGas developmentConsiderable temporal variabilityGas wellsGas-phase migrationFlow systemIsotopic compositionValley settingsBedrock aquifersAquifer depthShale gas wellsTemporal variabilityIsolated intervalsHydrocarbon compositionFugitive methaneUnconventional oilShale