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TitleIdentification of regional structural corridors in the Montney play using trend surface analysis combined with geophysical imaging
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorWozniakowska, P; Eaton, D W; Deblonde, C; Mort, A; Ardakani, O HORCID logo
SourceHydrogen sulfide (H2S) in the Montney Formation, Western Canada Sedimentary Basin (WCSB) - investigating a complex issue, workshop proceeding; by Ardakani, O HORCID logo (ed.); Pedersen, P KORCID logo (ed.); Geological Survey of Canada, Open File 8878, 2022 p. 45-52, Open Access logo Open Access
PublisherNatural Resources Canada
MeetingMontney H2S, Distribution and Origin Workshop; Calgary, AB; CA; February 9, 2022
Documentopen file
Mediadigital; on-line
RelatedThis publication is contained in Hydrogen sulfide (H2S) in the Montney Formation, Western Canada Sedimentary Basin (WCSB) - investigating a complex issue, workshop proceeding
File formatpdf
ProvinceAlberta; British Columbia
NTS83C; 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
AreaFort St. John; Dawson Creek; Grande Prairie; Whitecourt; Peace River; Edson; Hinton
Lat/Long WENS-123.5000 -115.7500 59.0000 53.0000
Subjectsfossil fuels; structural geology; geophysics; Science and Technology; Nature and Environment; Health and Safety; Lower Triassic; sedimentary basins; petroleum resources; hydrocarbons; reservoirs; structural interpretations; structural trends; trend surface analyses; petroleum industry; hydrocarbon recovery; hydraulic fracturing; liquid waste disposal; seismic risk; seismicity; earthquakes; earthquake risk; bedrock geology; structural features; faults; geophysical surveys; seismic surveys, ground; Montney Formation; Western Canada Sedimentary Basin; Montney Play; Cordilleran Thrust and Fold Belt; Phanerozoic; Mesozoic; Cretaceous; Triassic; Paleozoic; Carboniferous; Precambrian
Illustrationsseismic profiles; flow charts; geoscientific sketch maps; tables
ProgramEnergy Geoscience Clean Energy Resources - Decreasing Environmental Risk
ProgramGeoscience for New Energy Supply (GNES)
ProgramProgram of Energy Research and Development (PERD)
Released2022 03 22
AbstractInduced (anthropogenic) earthquakes are caused by reactivation of pre-existing faults due to human activities, including hydraulic fracturing and saltwater disposal. The Montney play, the pre-eminent shale gas play in Canada, contains localized regions with relatively high geological susceptibility to induced seismicity. Identification of potential seismogenic structures is hindered because published fault maps in the Montney play are often focused on small areas, leading to inconsistencies when these are compiled across the region. We have developed a regional framework based on structural corridors: complex, multi-strand faults systems. A three-step structural interpretation workflow was used, including seismic and structural interpretation along with trend surface analysis (TSA). This approach was used to identify 34 structural corridors in NE BC and NW Alberta.
Summary(Plain Language Summary, not published)
The origin and distribution of hydrogen sulfide (H2S) - a highly toxic and corrosive gas in conventional and unconventional resources of the Western Canada Sedimentary Basin - was the subject of many studies. The Early Triassic Montney Formation, one of the major North American unconventional gas resources, contains a significant amount of H2S in some areas. Several research teams in western Canada including the Geological Survey of Canada, the University of Calgary, and the University of British Columbia are investigating this complex issue. This workshop will provide a venue to discuss the latest scientific advancements on this topic in order to reach a better understanding of the distribution, origin, and mitigation strategies to overcome the associated economic and environmental issues. This open file report presents the proceedings of the online workshop 'Hydrogen sulfide (H2S) in the Montney Formation - investigating a complex issue' on February 9th, 2022 in Calgary Alberta, organized by the Canadian Society for Unconventional Resources (CSUR), Natural Resources Canada (NRCan), and University of Calgary.

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