Development and Characterization of a Geostatic Model for Monitoring Shallow CO2 Injection
Bibliographic record
Abstract
A 25 sq. km static geomodel was constructed for shallow injection into the 7 m thick Basal Belly River Sandstone at 300 m depth in Newell County, Alberta. Effective porosity and intrinsic permeability were calibrated to six core laboratory analyses. The regressional shoreline sandstone has effective porosity of 11% and intrinsic permeability of 0.57 mD. Dynamic simulation was completed on the P10-50-90 static cases for multiple injection scenarios, totalling approximately 3250 t/CO2 over a five-year period. The evolution of the CO2 plume was observed at one-year during injection and five-years during injection, as well as the one-year and ten-year mark for the post-injection period. The final ten-year post-injection result simulated a laterally extensive plume, expanding to 350 m in diameter and 20 m of vertical migration into the caprock interval. The target interval proves to be an ideal reservoir, and the seal interval predicts containment over a ten-year post-injection period.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".