Initial geophysical and geological assessment of an industry 3-D seismic survey covering the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well
Bibliographic record
Abstract
An industry 3-D seismic survey covers the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate well. Interpretation supported by biostratigraphy indicates a normally faulted anticline with Mallik 5L-38 occupying the northern downthrown crest. This east-striking fault, near Mallik 5L-38, has 800 m throw interpreted 700 m below gas-hydrate-bearing levels. Fault offset at Mallik 5L-38 gas-hydrate-bearing levels is probably several hundred metres less, because syndepositional fault movement during or after the Late Eocene is suggested. Downhole velocity surveys at Imperial Oil Mallik P-59, J-37, and A-06 wells infer 105 m, 225 m, and 135 m gas hydrate, respectively, compared to 116 m known at the Mallik 5L-38 well. Gas hydrate seismic characterization includes: multiple, generally weak, near-horizontal events; amplitude features on geological reflectors; amplitude 'blanking'; and chaotic, vertical reflective zones surrounding faults. Recognized data contamination features include amplitude-frequency degradation beneath lakes and reverberated energy. There is a spatial correspondence of some subsurface faults with position and orientation of surface lakes, suggesting a possible genetic link.
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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) | 0.002 | 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".