PLANNING AND EXECUTION OF A 500 M COREHOLE THROUGH OFFSHORE PERMAFROST
Bibliographic record
Abstract
The saline permafrost that extends offshore under the Canadian Beaufort Sea is in a delicate state of equilibrium. Conventional production of warm oil through these soils would cause thawing. This thawing would result in excessive axial and bending strains within the well casings and system components. Relatively continuous core is required to evaluate the extent, native and engineering properties of the permafrost interval. This information will be used to determine the effects of permafrost thaw on casing system components. This paper describes the operational aspects of the 1988 offshore permafrost coring program conducted by Gulf Canada Resources Ltd. The objectives of this program were to collect site-specific data, determine correlations between geophysical and geotechnical parameters, and develop techniques which could be applied to oil-well drilling. Through the development and application of state-of-the-art drilling and sampling technology, these objectives were met. Future papers will discuss the geological and geotechnidal aspects of this project. Le pergdlisol salin qui s'6tend au large sous la mer de Beaufort au Canada se trouve dam un Ctat d'bquilibre fragile. Un mode de production classique de p6trole tikde B travers ces sols provoquerait un d6gel. Ce d6gel produirait des d6formations axiales et de flexion excessives dam les tubages de puits et les
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".