Well Design, Construction and Completion Considerations in a Thermal Oil Sand Development Project
Bibliographic record
Abstract
Abstract The sub-surface design of wellbores and associated well completions to be used in thermal oil sand operations must take into account a significant number of criteria and factors to ensure the delivered wells can provide the required long-term operating life and reliability required of them, especially when it comes to operating safety. These considerations cover a wide range of primarily technical aspects, including the location and layout of the wells at surface and sub-surface; type of service the wellbore will be used for, therefore, the construction materials to be used and their properties; recovery process impact on the wellbore design including the geology and reservoir behaviour; tubing size, perforation and sand control considerations; artificial lift requirements; downhole operation selectivity; produced fluid compositions and conditions, and well operability requirements. The level of detail that needs to be considered for each of these depends on the stage of project development. As work progresses, the level of detail increases in order to be able to arrive at an appropriate and balanced technical and safety design, as well as associated cost, once the final concept selection is made. The subsequent "Detailed Engineering" phase should be used only to fine-tune any remaining questions or issues that may arise in preparation for final project approval, and to provide the required definition of each element in order to be able to build / purchase / install / operate it. It is not discussed in this paper.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 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".