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| Titel |
Volatile organic compound emissions from the oil and natural gas industry in the Uintah Basin, Utah: oil and gas well pad emissions compared to ambient air composition |
| VerfasserIn |
C. Warneke, F. Geiger, P. M. Edwards, W. Dubé, G. Petron, J. Kofler, A. Zahn, S. S. Brown, M. Graus, J. B. Gilman, B. M. Lerner, J. Peischl, T. B. Ryerson, J. A. de Gouw, J. M. Roberts |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 14, no. 20 ; Nr. 14, no. 20 (2014-10-17), S.10977-10988 |
| Datensatznummer |
250119107
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| Publikation (Nr.) |
 copernicus.org/acp-14-10977-2014.pdf |
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| Zusammenfassung |
| Emissions of volatile organic compounds (VOCs) associated with oil and
natural gas production in the Uintah Basin, Utah were measured at a ground
site in Horse Pool and from a NOAA mobile laboratory with PTR-MS instruments.
The VOC compositions in the vicinity of individual gas and oil wells and
other point sources such as evaporation ponds, compressor stations and
injection wells are compared to the measurements at Horse Pool. High mixing
ratios of aromatics, alkanes, cycloalkanes and methanol were observed for
extended periods of time and for short-term spikes caused by local point
sources. The mixing ratios during the time the mobile laboratory spent on the
well pads were averaged. High mixing ratios were found close to all point
sources, but gas well pads with collection and dehydration on the well pad
were clearly associated with higher mixing ratios than other wells. The
comparison of the VOC composition of the emissions from the oil and natural
gas well pads showed that gas well pads without dehydration on the well pad
compared well with the majority of the data at Horse Pool, and that oil well
pads compared well with the rest of the ground site data. Oil well pads on
average emit heavier compounds than gas well pads. The mobile laboratory
measurements confirm the results from an emissions inventory: the main VOC
source categories from individual point sources are dehydrators, oil and
condensate tank flashing and pneumatic devices and pumps. Raw natural gas is
emitted from the pneumatic devices and pumps and heavier VOC mixes from the
tank flashings. |
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