Methane emissions from contrasting production regions within Alberta, Canada
Implications under incoming federal methane regulations
Bibliographic Data
| ID | 19568568 |
|---|---|
| Authors | Elizabeth O’Connell (0000-0002-8492-0183, Xavier University), David Risk (0000-0002-5747-1706, Xavier University), Emmaline Atherton (Xavier University), Evelise Bourlon (0000-0001-6156-5505, Xavier University), Chelsea Fougère (Xavier University), Jennifer Baillie (0000-0002-4026-6087, Xavier University), David Lowry (0000-0002-8535-0346, Royal Holloway University of London), Jacob Johnson (0009-0000-0290-858X, Xavier University) |
| Editors | Detlev Helmig (0000-0003-1612-1651), Brian Lamb (0000-0001-7641-5227) |
| Year | 2019 |
| Volume | 7 |
| Publication date | 2019-01-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Elementa Science of the Anthropocene (JOURNAL) |
| Journal identifiers | ISSN: 2325-1026 • E-ISSN: 2325-1026 |
| Publisher | University of California Press (PUBLISHER • US) |
| DOI | 10.1525/elementa.341 |
| OpenAlex | W2907552959 |
| Language | EN |
| Citations received | 10 |
| References cited | 27 |
Aggressive reductions of oil and gas sector methane, a potent greenhouse gas, have been proposed in Canada. Few large-scale measurement studies have been conducted to confirm a baseline. This study used a vehicle-based gas monitoring system to measure fugitive and vented gas emissions across Lloydminster (heavy oil), Peace River (heavy oil/bitumen), and Medicine Hat (conventional gas) developments in Alberta, Canada. Four gases (CO2, CH4, H2S, C2H6), and isotopic δ13CCH4 were recorded in real-time at 1 Hz over a six-week field campaign. We sampled 1,299 well pads, containing 2,670 unique wells and facilities, in triplicate. Geochemical emission signatures of fossil fuel-sourced plumes were identified and attributed to nearby, upwind oil and gas well pads, and a point-source gaussian plume dispersion model was used to quantify emissions rates. Our analysis focused exclusively on well pads where emissions were detected >50% of the time when sampled downwind. Emission occurrences and rates were highest in Lloydminster, where 40.8% of sampled well pads were estimated to be emitting methane-rich gas above our minimum detection limits (m = 9.73 m3d–1). Of the well pads we found to be persistently emitting in Lloydminster, an estimated 40.2% (95% CI: 32.2%–49.4%) emitted above the venting threshold in which emissions mitigation under federal regulations would be required. As a result of measured emissions being larger than those reported in government inventories, this study suggests government estimates of infrastructure affected by incoming regulations may be conservative. Comparing emission intensities with available Canadian-based research suggests good general agreement between studies, regardless of the measurement methodology used for detection and quantification. This study also demonstrates the effectiveness in applying a gaussian dispersion model to continuous mobile-sourced emissions data as a first-order leak detection and repair screening methodology for meeting regulatory compliance
Atmospheric sciences · Fossil fuel · Fugitive emissions · Geography · Greenhouse gas · Meteorology · Methane · Methane emissions · Plume · Waste management · Atmospheric and Environmental Gas Dynamics · Chemistry · Coal Properties and Utilization · Engineering · Environmental Science · Wind and Air Flow Studies · Environmental Engineering · Geology
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| Unique citing works | 10 |
|---|---|
| Citations per year | 1.43 |
| Citation span | 2019 - 2026 (8) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 9 |