| Title | Poly-genetic stratigraphically controlled hydrocarbon accumulation within the Montney Formation, British Columbia: molecular, stable carbon isotope and petrographic evidence |
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| Author | Cesar, J ;
Ardakani, O H |
| Source | Geoconvention 2021, abstracts; 2021 p. 1-2  Open
Access |
| Links | Online - En ligne
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| Image |  |
| Year | 2021 |
| Alt Series | Natural Resources Canada, Contribution Series 20210170 |
| Publisher | GeoConvention Partnership |
| Meeting | GeoConvention 2021; September 13-15, 2021 |
| Document | serial |
| Lang. | English |
| Media | digital; on-line |
| File format | pdf |
| Province | British Columbia |
| NTS | 93I; 93O; 93P; 94A; 94B; 94G; 94H; 94I; 94J |
| Area | Fort St. John |
| Lat/Long WENS | -123.0000 -120.0000 58.2500 54.5000 |
| Subjects | fossil fuels; stratigraphy; geochemistry; sedimentology; Science and Technology; Nature and Environment; petroleum resources; hydrocarbons; hydrocarbon migration; stable isotope studies; carbon
isotopes; petrographic analyses; stratigraphic analyses; core samples; pyrolysis; chromatography; mass spectrometer analysis; Montney Formation |
| Program | Geoscience for New Energy Supply (GNES) Shale Reservoir Characterization |
| Released | 2021 09 01 |
| Abstract | (Summary)
The vast majority of hydrocarbons producing from the Montney Formation in British Columbia are considered to be originated from the thermal degradation of migrated hydrocarbons (e.g.
Sanei et al., 2015; Wood and Sanei, 2016). However, uncertainties remain regarding how migrated hydrocarbons originally were distributed before degradation, as well as how hydrocarbon mixing (i.e. several migration stages) enabled the occurrence of
highly productive stratigraphic intervals. In this study, we provide molecular, stable carbon isotopes, and petrographic data that answer some of these questions. Using samples from a core in British Columbia, we describe how within a 40 m section,
one to two hydrocarbon charges accumulated in different stratigraphic intervals without thermal maturity control. Thermal degradation also seemed to occur in at least two stages (two solid bitumen populations). Hydrocarbon distribution within the
Montney Formation is complex and the geochemical properties of produced fluids are often a representation of poly-genetic hydrocarbon accumulation that requires a rather detailed approach. |
| Summary | (Plain Language Summary, not published)
The vast majority of hydrocarbons producing from the Montney Formation in British Columbia are considered to be originated from the thermal degradation
of migrated hydrocarbons (e.g. Sanei et al., 2015; Wood and Sanei, 2016). However, uncertainties remain regarding how migrated hydrocarbons originally distributed before degradation, as well as how hydrocarbon mixing (i.e. several migration stages)
enabled the occurrence of highly productive stratigraphic intervals. In this study, we provide molecular, stable carbon isotopes, and petrographic data that answer some of these questions using samples from a core in British Columbia. |
| GEOSCAN ID | 328611 |
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