Production-test planning for the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well
Bibliographic record
Abstract
The objectives of the production tests conducted at the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well were to confirm the feasibility of production of natural gas from gas hydrate deposits by depressurization and thermal stimulation, and to collect sufficient data to determine relevant gas hydrate formation properties. Options investigated for testing the gas hydrate accumulation at the Mallik well included producing the free-gas interval at the base of the gas hydrate stability zone; conducting small- and/or large-scale pressure-drawdown experiments directly in a gas hydrate zone; inhibitor stimulations; horizontal wells; complex multiple-well experiments; and thermal stimulations. In the end, considering time and budget constraints, a combination of multiple, small, pressure-drawdown tests and a separate thermal-stimulation test were selected as the best methods to meet the test objectives. This paper reviews the development of the gas hydrate production-test experiments for the Mallik 5L-38 well.
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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 | 0.004 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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".