| Title | Rock-Eval data for four hydrocarbon exploration wells in Hudson Bay and Foxe basins |
| Download | Downloads |
| Author | Zhang, S; Dewing, K |
| Source | Geological Survey of Canada, Open File 5872, 2008, 25 pages, https://doi.org/10.4095/225633 |
| Year | 2008 |
| Document | open file |
| Lang. | English |
| Media | digital; on-line |
| File format | pdf |
| Province | Nunavut; Northern offshore region |
| NTS | 37B; 37C; 44; 54B |
| Area | Hudson Bay; Foxe Basin; Rowley Island |
| Lat/Long WENS | -80.0000 -76.0000 69.0000 68.0000 |
| Lat/Long WENS | -91.0000 -84.0000 59.0000 56.5000 |
| Subjects | fossil fuels; stratigraphy; hydrocarbon potential; hydrocarbon generation; thermal maturation; wells; lithology; sedimentary rocks; shales; sandstones; carbonate rocks; Middle Ordovician; Upper
Ordovician; pyrolysis; stratigraphic correlations; Foxe Basin; Hudson Bay Basin; Bad Cache Rapids Group; Churchill River Group; Red Head Rapids Formation; Severn River Formation; Ekwan River Formation; Attawapiskat Formation; Kenogami Formation;
Gallery Formation; Turner Cliff Formation; Frobisher Bay Formation; Amadjuak Formation; Akpatok Formation; Foster Bay Formation; Narwhal South O-58 well; Polar Bear C-11 well; Comeault No. 1 well; Rowley M-04 well; rock-eval analyses; rock-eval
pyrolysis; Silurian; Ordovician; Cambrian |
| Illustrations | analyses; sketch maps |
| Viewing | |
| Natural Resources Canada Library - Ottawa (Earth Sciences) |
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| Program | Nunavut Stratigraphy/Energy (2007) |
| Released | 2008 07 29 |
| Abstract | Hudson Bay and Foxe basins are Lower Paleozoic sedimentary basins in the eastern Canadian Arctic. Hydrocarbon exploration of these two basins began more than 30 years ago, however, their hydrocarbon
potential remains poorly understood. In Hudson Bay Basin, the lower part ofthe Paleozoic succession comprises 600 to1040 m of Upper Ordovician (Bad Cache Rapids and Churchill River groups and Red Head Rapids Formation) and Lower Silurian (Severn
River, Ekwan River, Attawapiskat and Kenogami formations) carbonate and minor amounts of shale. The Paleozoic sequence in Foxe Basin is composed of ~ 510 m of Middle Cambrian (Gallery and Turner Cliff formations), Middle and Upper Ordovician
(Frobisher Bay, Amadjuak, Akpatok and Foster Bay formations) and Lower Silurian (Severn River Formation) sandstone, carbonate and minor amounts of shale.
A total of 246 samples, collected from 4 wells (Polar Bear C-11 and Narwhal South O-58 in
Hudson Bay offshore, Comeault No. 1 on Hudson Bay Lowlands, and Rowley M-04 in Foxe Basin), were analyzed using Rock-Eval 6 Pyrolysis technique. The new data from Hudson Bay demonstrate that:
1) At Narwhal South O-58, samples from the middle–upper
Bad Cache Rapids Group have Tmax between 431 and 436. The total organic carbon (TOC) is uniformly very low.
2) At Polar Bear C-11, almost all samples from the Bad Cache Rapids Group to middle Severn River Formation have a Tmax between 430 and 440;
however, the TOC is uniformly low.
3) At Comeault No. 1, more than half of the samples from Bad Cache Rapids Group to Severn River Formation show a HI>300, and several samples have TOC>2%. However, most of the samples have Tmax<435 and are below
the threshold for hydrocarbon generation.
4) At Rowley M-04 strata show some elevated TOC but insufficient thermal maturity for hydrocarbon generation. |
| GEOSCAN ID | 225633 |
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