A sand channel interpretation using 3D multi-component seismic data : Ross Lake, Saskatchewan
Bibliographic record
Abstract
The Ross Lake oil field in southwestern Saskatchewan, which is operated by Husky Energy Inc., is interpreted as a Cretaceous-age channel sand in the Dimmock Creek member of the Cantuar formation of the Mannville Group. Porosity and permeability of the sandstone (which contains 13 degree API heavy oil) are high, and the reservoir stands out clearly as a thick anomaly, probably because of this. A 3C-3D seismic survey was performed in 2002 (using 0.5 kg dynamite) and in June 2003 a walkaway vertical seismic profile (VSP) was done on wells 11-25 of this field. PP and PS seismic data were used to interpret the target sand body. The paper gives an in-depth account of analytic methods used, and the subsequent interpretation of the results. The authors conclude, among other things, that the VSP data is useful in interpreting PP and PS seismic data. They claim their conclusions are borne out by the products of an existing horizontal well, and that their results are likely useful for identifying further drilling targets. 9 figs.
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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 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.031 | 0.005 |
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".