Mobile Laboratory Observations of Methane Emissions in the Barnett Shale Region.
Environ Sci Technol
; 49(13): 7889-95, 2015 Jul 07.
Article
em En
| MEDLINE
| ID: mdl-25751617
ABSTRACT
Results of mobile ground-based atmospheric measurements conducted during the Barnett Shale Coordinated Campaign in spring and fall of 2013 are presented. Methane and ethane are continuously measured downwind of facilities such as natural gas processing plants, compressor stations, and production well pads. Gaussian dispersion simulations of these methane plumes, using an iterative forward plume dispersion algorithm, are used to estimate both the source location and the emission magnitude. The distribution of emitters is peaked in the 0-5 kg/h range, with a significant tail. The ethane/methane molar enhancement ratio for this same distribution is investigated, showing a peak at â¼1.5% and a broad distribution between â¼4% and â¼17%. The regional distributions of source emissions and ethane/methane enhancement ratios are examined the largest methane emissions appear between Fort Worth and Dallas, while the highest ethane/methane enhancement ratios occur for plumes observed in the northwestern potion of the region. Individual facilities, focusing on large emitters, are further analyzed by constraining the source location.
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1
Base de dados:
MEDLINE
Assunto principal:
Sedimentos Geológicos
/
Poluentes Atmosféricos
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Laboratórios
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Metano
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article