Emissions Event Statistics Tool and Datasets

In developing measurement-informed emission estimates for natural gas supply chains, periodic short duration emission estimates must frequently be extrapolated to longer time periods.  Even CMS do not provide emissions information for all sources, at all times, because of variability in wind conditions and solar irradiation, high and highly uncertain detection thresholds, quantification uncertainty, and operational downtime.  To extrapolate these discontinuous estimates into measurement informed emission inventories, data are needed about the frequency, magnitude, and duration of emission events.  The goal of the emissions event statistics tool is to develop models for estimating inventories of intermittent emission events at the equipment-, site-, and basin-level.  These models could be used in extrapolating emission snapshot estimates, such as those obtained with drones or airplanes, to annualized emissions. Aggregation of data from multiple operators across multiple oil and gas basins will be used to develop a national database of emission event statistics.  Tasks will be completed by Q4 2023 under this project.

  • EEMDL investigators are involved with synergistic projects that have access to CMS data from large numbers of sites in the Marcellus, Permian, Denver-Julesburg and other basins. These data will be interpreted, using tools developed in Project 2, to develop equipment- and site-level emission event statistics. Initial work will focus on the Marcellus basin in Year-1, with future years expanding to other basins.

  • EEMDL investigators are involved with synergistic projects that have access to CMS data from large numbers of midstream compressor stations. These data will be interpreted, using tools developed in Project 2, to develop aggregated and anonymized equipment level and site level emission event statistics with initial focus on the Marcellus basin, followed by midstream facilities in other basins starting in Year-2.