ABSTRACT: Petroleum Exploration in Newfoundland and Labrador: What Have We Found and Where Do We Go From Here?
Bibliographic record
Abstract
Recoverable resources of 2.1 billion barrels of oil, 5.1 trillion cubic feet of natural gas and 290 million barrels of natural gas liquids have been discovered on the Grand Banks of Newfoundland, with an additional 4.2 trillion cubic feet of natural gas and 123 million barrels of natural gas liquids discovered offshore Labrador. Production is currently at about 140,000 bopd and, based on the current slate of developments,could reach 350,000 to 450,000 bopd within the next five to six years. These resources have been discovered by the drilling of only 127 exploration wells that are predominantly concentrated within the Mesozoic sediments of the Jeanne d'Arc Basin, (figure 1) although some 20 other basins and sub-basins ranging in age from Early Paleozoic to Cenozoic are located in and around Newfoundland and Labrador (figure 2). The most successful play concept to date has been Cretaceous faulting, which has provided the trapping mechanism for all of the major oil discoveries including Hibernia, White Rose and Hebron (figure 3) and has combined with a stratigraphic pinchout to trap the hydrocarbons at Terra Nova. Recent landsales and seismic surveys indicate that industry is ready to revisit areas outside the Jeanne d'Arc Basin, such as the Flemish Pass and the Southern Grand Banks in the near future. Although only three wells have been drilled in the Flemish Pass Basin (the last one in 1986) they have shown the presence of similar-age reservoirs and source rock to the Jeanne d'Arc, and seismic indicates presence of large structures including Cretaceous fault blocks. This basin is located in deeper water (1100 metres as compared to 100 metres) than the Jeanne d'Arc, and has been the focus of aggressive rights acquisition by Petro-Canada and Norsk Hydro in recent landsales. Drilling is expected to occur next year with the arrival of a deep water rig. Thirty wells drilled in the Southern Grand Banks (SGB) basins (Whale, South Whale, Horseshoe and Carson/Bonnition basins) between 1966 and 1974 were largely focused on the area's salt dome play and encountered only minor oil and gas shows. It would appear that, either there is no significant source rock in this area, or that the salt movement post dated the migration of hydrocarbons. No source rock was encountered in any of the SGB wells but seismic indicates that a
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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 | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.007 |
| Science and technology studies | 0.004 | 0.003 |
| Scholarly communication | 0.005 | 0.004 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.013 | 0.002 |
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".