Isotopic Fingerprints for Delineating the Environmental Effects of Hydraulic Fracturing Fluids - BRGM - Bureau de recherches géologiques et minières Accéder directement au contenu
Article Dans Une Revue Procedia Earth and Planetary Science Année : 2015

Isotopic Fingerprints for Delineating the Environmental Effects of Hydraulic Fracturing Fluids

Résumé

Unconventional shale gas and tight sand exploration through hydraulic fracturing accounts for a large fraction of oil and gas production in the US and will soon be launched on a global scale. One of the complexities in evaluating the environmental impact of hydraulic fracturing and shale gas development is the legacy of conventional oil and gas exploration in the same areas. Data from the USGS produced water database coupled with new data generated from flowback and produced waters from several basins in the US reveal that the formation water is typically hypersaline and characterized by a Ca-chloride composition with high Br/Cl ratios that reflect different degrees of seawater evaporation and water-rock interactions. In many cases, the chemistry of effluents from unconventional and conventional wells is indistinguishable. In the Appalachian Basin, flowback from the Marcellus Shale has distinctive trace element (B/Cl, Li/Cl) and isotopic (87 Sr/ 86 Sr, 11 B, 7 Li, 228 Ra/ 226 Ra) fingerprints that are different from those in produced waters from conventional oil and gas wells. The integration of these geochemical and isotopic tracers could provide robust monitoring tools for evaluating the environmental effects and delineating the specific impact of unconventional oil and gas operations.
Fichier principal
Vignette du fichier
1-s2.0-S1878522015002003-main.pdf (588.94 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03699903 , version 1 (20-06-2022)

Identifiants

Citer

Avner Vengosh, Nathaniel R Warner, Andrew Kondash, Jennifer S Harkness, Nancy Lauer, et al.. Isotopic Fingerprints for Delineating the Environmental Effects of Hydraulic Fracturing Fluids. Procedia Earth and Planetary Science, 2015, 13, pp.244 - 247. ⟨10.1016/j.proeps.2015.07.057⟩. ⟨hal-03699903⟩

Collections

BRGM
10 Consultations
12 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More