Inversion Estimates of Lognormally Distributed Methane Emission Rates From the Haynesville-Bossier Oil and Gas Production Region Using Airborne Measurements

Cui, Yu Yan; Henze, Daven K.; Brioude, Jerome; Angevine, Wayne M.; Liu, Zhen; Bousserez, Nicolas; Guerrette, Jonathan; McKeen, Stuart A.; Peischl, Jeff; Yuan, Bin; Ryerson, Thomas; Frost, Gregory; Trainer, Michael

doi:10.1029/2018JD029489

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Inversion Estimates of Lognormally Distributed Methane Emission Rates From the Haynesville-Bossier Oil and Gas Production Region Using Airborne Measurements

2019
By Cui, Yu Yan ; Henze, Daven K. ; Brioude, Jerome ; ...
Source: Journal of Geophysical Research: Atmospheres, 124(6)

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Journal Title:

Journal of Geophysical Research: Atmospheres
Personal Author:

Cui, Yu Yan ; Henze, Daven K. ; Brioude, Jerome ; Angevine, Wayne M. ; Liu, Zhen ; ... More +

Cui, Yu Yan ; Henze, Daven K. ; Brioude, Jerome ; Angevine, Wayne M. ; Liu, Zhen ; Bousserez, Nicolas ; Guerrette, Jonathan ; McKeen, Stuart A. ; Peischl, Jeff ; Yuan, Bin ; Ryerson, Thomas ; Frost, Gregory ; Trainer, Michael Less -
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences) ; OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CSL (Chemical Sciences Laboratory)

CIRES (Cooperative Institute for Research in Environmental Sciences) ; OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CSL (Chemical Sciences Laboratory) Less -
Description:

Quantifying methane (CH4) emissions from the oil and natural gas (O/NG) production sector is an important regulatory challenge in the United States. In this study, we conduct a set of inversion calculations using different methods to quantify lognormal distributed CH4 surface fluxes in the Haynesville-Bossier O/NG production basin in Texas and Louisiana, combining three statistical cost functions, four meteorological configurations, and two days of aircraft measurements from a 2013 field campaign. We aggregate our posterior flux estimates to derive our best estimate of the basin-wide CH4 emissions, 76 metric tons/hr, with a 95% highest density interval of 51–104 metric tons/hr, in agreement with previous estimates using mass balance and eddy covariance approaches with the same aircraft measurements. Our inversion estimate of basin-wide CH4 emissions is 133% (89%–182%, 95% highest density interval) of a gridded Environmental Protection Agency's inventory for 2012, and the largest discrepancies between our study and this inventory are located in the northeastern quadrant of the basin containing active unconventional O/NG wells. Our inversion approach provides a new spatiotemporal characterization of CH4 emissions in this O/NG production region and shows the usefulness of inverse modeling for improving O/NG CH4 emission estimates.
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Methane
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Journal of Geophysical Research: Atmospheres, 124(6)
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https://doi.org/10.1029/2018JD029489
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Journal Article
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CC BY-NC-ND
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urn:sha256:d8a614a7b09b386f9466b71a8c09c0f390a7763b0db015bfd0593f7bfa849be6
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Inversion Estimates of Lognormally Distributed Methane Emission Rates From the Haynesville-Bossier Oil and Gas Production Region Using Airborne Measurements

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