| Title | Hydrogen sulfide (H2S) distribution in the Triassic Montney Formation of the Western Canadian Sedimentary Basin |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Kingston, A W ;
Mort, A; Deblonde, C; Ardakani, O H |
| Source | Geological Survey of Canada, Open File 8849, 2021, 21 pages, https://doi.org/10.4095/329266  Open Access |
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| Year | 2021 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | digital; on-line |
| File format | pdf |
| Province | Alberta; British Columbia |
| NTS | 83E; 83F; 83G; 83J; 83K; 83L; 83M; 83N; 83O; 84B; 84C; 84D; 84E; 84F; 84G; 84L; 93I; 93O; 93P; 94A; 94B; 94G; 94H; 94I; 94J |
| Area | Fort St. John; Dawson Creek; Grande Prairie; Whitecourt; Peace River; Edson; Hinton |
| Lat/Long WENS | -123.5000 -115.7500 59.0000 53.0000 |
| Subjects | fossil fuels; geochemistry; Science and Technology; Nature and Environment; petroleum resources; hydrocarbons; hydrocarbon recovery; reservoirs; hydrogen sulphide; wells; hydrocarbon geochemistry; gas;
condensate; water geochemistry; statistical analyses; sulphates; chloride; models; Montney Formation; Western Canada Sedimentary Basin; Quality control; Phanerozoic; Mesozoic; Triassic |
| Illustrations | geoscientific sketch maps; cross-sections; flow diagrams; screen captures |
| Program | Energy Geoscience Clean Energy Resources - Decreasing Environmental Risk |
| Released | 2021 12 17 |
| Abstract | The Montney Formation is a highly productive hydrocarbon reservoir that is of great economic importance to Canada, however production is often dogged by the presence of hydrogen sulfide (H2S), a highly
toxic and corrosive gas. Mapping H2S distribution across the Montney basin in the Western Canadian Sedimentary Basin (WCSB) is fundamental to understanding the processes responsible for its occurrence. We derive a Montney-specific dataset of well gas
and water geochemistry from the publically available archives of the Alberta Energy Regulator (AER) and British Columbia Oil and Gas Commission (BCOGC) conducting quality assurance and control procedure before spatial interpolation. Empirical
Bayesian Kriging is used to interpolate H2S across the whole Montney basin resulting in maps of H2S from hydrocarbon gas, condensates, and water; along with maps of sulfate and chloride ions in water. These interpolations illustrate the heterogeneous
distribution of H2S across the basin with the highest concentrations in the Grande Prairie area along with several other isolated regions. Maps of H2S in gas, condensates, and water exhibit similar trends in H2S concentrations, which with future
research may help elucidate the origin of H2S in the Montney. |
| Summary | (Plain Language Summary, not published)
Hydrogen sulfide (H2S) is a toxic and corrosive gas, which poses significant risks to both human and environmental health. The Montney Formation is a
highly productive hydrocarbon reservoir that is of great economic importance to Canada, however production is often negatively impacted by the presence of H2S. This Open File Report uses publicly available geochemical data from the Alberta Energy
Regulator and British Columbia Oil and Gas Commission to assess H2S distribution across the Montney Formation. A series of maps are presented including H2S content in gas, condensate, and water along with sulfate and chloride in water. |
| GEOSCAN ID | 329266 |
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