| Title | Mineralogical controls on organic-hosted pore volume and pore size - Duvernay Formation, Alberta, Canada |
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| Author | Knapp, L J; Uchida, S; Nanjo, T; Ardakani, O H |
| Source | Geoconvention 2019, technical program; 2019 p. 1-5  Open
Access |
| Links | Online - En ligne
(PDF, 912 KB)
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| Image |  |
| Year | 2019 |
| Alt Series | Natural Resources Canada, Contribution Series 20180339 |
| Meeting | GeoConvention 2019; Calgary, AB; CA; May 13-15, 2019 |
| Document | Web site |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf (Adobe® Reader®) |
| Province | Alberta |
| NTS | 73D; 73E; 73L; 73M; 83 |
| Lat/Long WENS | -119.0000 -111.0000 56.0000 52.0000 |
| Subjects | fossil fuels; sedimentology; mineralogy; geochemistry; Science and Technology; petroleum resources; hydrocarbons; reservoir rocks; pore size; pore structure; pore fluids; porosity; core samples; wells;
mineralogical analyses; mass spectrometer analysis; x-ray diffraction analyses; scanning electron microscope analyses; organic geochemistry; organic carbon; thermal maturation; pyrolysis; petrographic analyses; Duvernay Formation; Chevron Fox Creek
08-15 Well; Chevron KaybobS 14-20 Well; ECA Saxon 11-08 Well; Phanerozoic; Paleozoic; Devonian |
| Illustrations | plots; spectra; photomicrographs |
| Program | Geoscience for New Energy Supply (GNES) Shale Reservoir Characterization |
| Released | 2019 05 01 |
| Abstract | (Summary)
Organic matter contributes significantly to total porosity in self-sourced hydrocarbon reservoirs. However, the main controlling factor(s) for development and preservation of
organic-hosted porosity are not well understood. By examining the Duvernay Formation of western Canada this study demonstrates an association between matrix composition and organic-hosted porosity. In this study, the contribution of organic- and
inorganic-hosted pores in total porosity were quantified by deconvolution of laboratory-based nuclear magnetic resonance (NMR) curves. Significant secondary feldspar dissolution porosity in the T2 range of clay-bound water is observed in the wet gas
window near Fox Creek. |
| Summary | (Plain Language Summary, not published)
This study presents an interesting examination on the factors influencing organic-hosted porosity. Ratios of biogenic silica and muscovite to TOC act as
proxies for subsurface processes, and offer an explanation for local variability in organic-hosted porosity. |
| GEOSCAN ID | 313392 |
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