| Title | Petrophysical characteristics of post-2000 significant conventional discovery wells in the Beaufort-Mackenzie Basin |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Hu, K ; Chen, Z; Issler, D R |
| Source | Geological Survey of Canada, Open File 7318, 2019, 1 sheet, https://doi.org/10.4095/313630  Open Access |
| Image |  |
| Year | 2019 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Province | Northern offshore region; Northwest Territories; Yukon |
| NTS | 107; 117 |
| Area | Beaufort Sea; Mackenzie Delta |
| Lat/Long WENS | -142.0000 -128.0000 71.5000 68.0000 |
| Subjects | fossil fuels; geophysics; petroleum resources; hydrocarbon potential; hydrocarbons; oil; gas; reservoir parameters; petrophysics; models; discovery wells; bedrock geology; lithology; sedimentary rocks;
sandstones; siltstones; porosity; permeability; geophysical logging; well logging; core samples; core analysis; flow rates; Paleogene; Pliocene; Eocene; Beaufort-Mackenzie Basin; Tuk M-18 Well; Kurk M-15 Well; Paktoa C-60 Well; Olivier H-01 Well;
Langley E-07 Well; Langley K-30 Well; Ellice I-48 Well; Ellice J-27 Well; Umiak N-05 Well; Umiak N-16 Well; Langley Field; Ellice Field; Umiak Field; Taglu Sequence; Aklak Sequence; Tuk Gas Field; Kamik Formation; Phanerozoic; Cenozoic; Tertiary;
Mesozoic; Cretaceous |
| Illustrations | geoscientific sketch maps; stratigraphic charts; tables; histograms; plots; well logs; lithologic sections; profiles |
| Program | Geoscience for New Energy Supply (GNES) Frontier basin analysis |
| Released | 2019 02 14 |
| Abstract | This study employs an integrated approach to derive reservoir parameters and provides an overview of petrophysical characteristics for post-2000 conventional discovered oil and gas accumulations in the
Beaufort-Mackenzie Basin. The evaluated wells include Tuk M-18, Kurk M-15, Paktoa C-60, Olivier H-01, Langley E-07 and K-30 (Langley field), Ellice I-48 and J-27 (Ellice field), Umiak N-05 and N-16 (Umiak field). Petrophysical models are developed
for the evaluation of reservoir properties, including lithology, porosity, permeability and water saturation using core-calibrated log data. Potential oil and gas zones are identified using specified porosity and water saturation
cut-off values
(>10% porosity, <45% Sw).
Most of the log-identified petroleum zones in the ten wells occur primarily in the Paleogene Taglu and Aklak sequences in sandstone reservoirs of good porosity and permeability, or in shaly sandstone and siltstone
reservoirs with fair to good porosity and permeability. However, major identified gas zones in the Tuk gas field occur in sandstone of the Lower Cretaceous Kamik Formation. Good quality gas zones in the Tuk M-18 well occur in fine to mediumgrained
sandstone with good porosity (21% on average), excellent permeability (mainly between 10 and 2000 mD), and high gas saturation (90% on average), and with restricted flow test rates up to 860,000 cubic meter of natural gas per day. In the Paktoa C-60
well, the only significant discovery drilled in the Beaufort Sea since 1990, an oil zone is identified in unconsolidated fine to coarse-grained sandstone of the Taglu Sequence. This zone has good reservoir properties with an average porosity of 25%
and maximum permeability of 10 to 100 mD. This log interpretation is consistent with drill stem tests that recovered oil from this interval. |
| Summary | (Plain Language Summary, not published)
Since 2001, more than 25 new exploration wells have been drilled, resulting in ten new significant conventional discoveries that include the following
wells: Tuk M-18 and B-02 in the Tuk field, Langley K-30 and E-07 in the Langley field, Ellice I-48 and J-27 in the Ellice field, Umiak N-05 and N-16 in the Umiak field, Olivier H-01, Paktoa C-60 and Kurk M-15. This study employs an integrated
approach to derive reservoir parameters and provides an overview of petrophysical characteristics for the newly discovered oil and gas accumulations. Petrophysical models are developed for the evaluation of reservoir properties, including lithology,
porosity, permeability and water saturation using core-calibrated log data. Potential oil or gas zones are also identified in the study. |
| GEOSCAN ID | 313630 |
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