| Title | Comparison among brittleness, hardness and mineral composition of the Besa River Formation in the Liard Basin, Canada |
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| Author | Kim, Y ; Lee, H
S; Choi, J; Kim, K H; Ozyer, C A |
| Source | Journal of Natural Gas Science and Engineering vol. 103, 104632, 2022 p. 1-14, https://doi.org/10.1016/j.jngse.2022.104632  Open Access |
| Image |  |
| Year | 2022 |
| Alt Series | Natural Resources Canada, Contribution Series 20220089 |
| Publisher | Elsevier B.V. |
| Document | serial |
| Lang. | English |
| Media | paper; digital; on-line |
| File format | pdf |
| Province | British Columbia; Yukon; Northwest Territories |
| NTS | 94; 104A; 104H; 104I; 104P; 95A; 95B; 95C; 95D; 105A |
| Lat/Long WENS | -130.0000 -120.0000 61.0000 55.0000 |
| Subjects | geochemistry; mineralogy; quartz; minerals; Liard Basin; Besa River Formation; Devonian; Mississippian |
| Illustrations | location maps; stratigraphic charts; tables; profiles; plots |
| Program | Energy Geoscience |
| Released | 2022 05 20 |
| Abstract | Rock brittleness is regarded as one of the most crucial geomechanical properties affecting hydraulic fracturing in shale reservoirs. Numerous studies have been conducted to quantify rock brittleness,
most of which were based on mineralogical and geomechanical properties. This study aims to clarify relationship between brittleness indices and multi-proxies of the Devonian Besa River Formation, which is a frontier shale gas play in Western Canada
Sedimentary Basin and to suggest an ideal model for mineralogy-based brittleness index. To this end, we calculated Young's modulus and Poisson's ratio from well logs and measured the Leeb hardness from slabbed core surfaces. We also conducted
geochemical and sedimentological analyses for the Besa River Formation. Hardness and brittleness are positively correlated with quartz content but negatively with clay mineral content in the formation, whereas carbonate mineral and total organic
carbon (TOC) contents show no relationship with hardness and brittleness. Hardness measurements are also well correlated with rock brittleness from well logs and can be a good proxy for the brittleness of Besa River Formation. This study suggests an
ideal model for a mineralogy-based brittleness index, considering the influence of biogenic and detrital quartz in the Formation. This model shows a high correlation coefficient with rock brittleness and can be useful to determine the brittleness of
rocks with similar characteristics to Besa River Formation. |
| Summary | (Plain Language Summary, not published)
This study helps clarify the relationship between brittleness indices and multi-proxies of the Devonian Besa River Formation, which is a frontier shale
gas play in Western Canada Sedimentary Basin. The study revealed the hardness and brittleness are positively correlated with quartz content but negatively with clay mineral content in the formation, whereas carbonate mineral and total organic carbon
(TOC) contents show no relationship with hardness and brittleness. The model in this study shows a high correlation coefficient with rock brittleness and can be useful to determine the brittleness of rocks with similar characteristics to Besa River
Formation. |
| GEOSCAN ID | 330128 |
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