Open-path dual-comb spectroscopy of methane and VOC emissions from an unconventional oil well development in Northern Colorado

Autor: Griffin J. Mead, Eleanor M. Waxman, Daniel Bon, Daniel I. Herman, Esther Baumann, Fabrizio R. Giorgetta, Jacob T. Friedlein, Gabriel Ycas, Nathan R. Newbury, Ian Coddington, Kevin C. Cossel
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Frontiers in Chemistry, Vol 11 (2023)
Druh dokumentu: article
ISSN: 2296-2646
DOI: 10.3389/fchem.2023.1202255
Popis: We present results from a field study monitoring methane and volatile organic compound emissions near an unconventional oil well development in Northern Colorado from September 2019 to May 2020 using a mid-infrared dual-comb spectrometer. This instrument allowed quantification of methane, ethane, and propane in a single measurement with high time resolution and integrated path sampling. Using ethane and propane as tracer gases for methane from oil and gas activity, we observed emissions during the drilling, hydraulic fracturing, millout, and flowback phases of well development. Large emissions were seen in drilling and millout phases and emissions decreased to background levels during the flowback phase. Ethane/methane and propane/methane ratios varied widely throughout the observations.
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