Reservoir characterization study: porosity, permeability, petrography, and facies analysis of Tertiary to Mississippian age outcrop samples, eastcentral Brooks Range Foothills and North Slope, Alaska - Abstract
Bibliographic record
Abstract
A reservoir characterization study based on surface geologic mapping, facies analysis, petrography, porosity, and permeability focuses on the siliciclastic Upper Cretaceous Tuluvak Formation in particular, and on other Cretaceous to Mississippian units in general. The data yield significant reservoir characterization and bear on petroleum resource assessment for Prudhoe Bay satellite fields, new play-type evaluations, and surface and subsurface stratigraphic correlations of the eastern Colville basin. Outcrop samples are part of the parautochthonous and autochthonous Brookian sequence that crops out in the Brooks Range foothills, and the allochthonous Ellesmerian sequence that crops out along the Brooks Range mountain front. The foreland basin succession (Brookian) lies north of the Brooks Range fold-and-thrust belt, and prograded north, onlapping the south flank of the Beaufort sill, which separates the Colville Basin from the Canada Basin in the Arctic Ocean. Stratigraphy is part of the 1,000 km-long and 50 to 350 km-wide Colville Basin, which, in the subsurface forms reservoir and source rocks for Prudhoe Bay and satellite fields.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".