Velocity measurements of conglomerates and pressure sensitivity analysis of AVA response
Bibliographic record
Abstract
During hydrocarbon depletion and enhanced oil recovery, the pore pressure and the fluid saturation levels in the reservoir will change. These changes can be reflected from the time‐lapse seismic data. In order to better understand the AVO changes and time shift of the time‐lapse data, P‐ and S‐wave velocities were measured on a series of low porosity conglomerates under different confining and pore pressures and under both dry and water saturated conditions using standard pulse transmission methods. To better understand the time‐lapse seismic data, we also performed the pressure sensitivity analysis of the P‐P and P‐SV reflectivity on a simple two layer interface using complete Zoeppritz's equations based on the laboratory velocity measurement. The result suggests that both of the P‐P and P‐SV reflections are very sensitive to the effective pressure at low effective pressure.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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) | 0.000 | 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 teacher head, 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".