Field report on the vertical ground-coupled heat pump pilot project for the Forum building in Kuujjuaq (Nunavik, Canada)
Bibliographic record
Abstract
The present field report describes the drilling of a geothermal exploration borehole and the installation of a ground heat exchanger for a pilot ground-coupled heat pump project led by Kujjuamiut Inc. as part of the Kuujjuaq Clean Energy Plan and funded by the “Indigenous Off-Diesel Initiative” of Natural Resources Canada. For this project, Borehole drilling was made by Avataa Rouillier Drilling, Geophysical well logging was made by Université Laval and ground heat exchanger installation was made by Induktion Géothermie. The Institut national de la recherche scientifique (INRS) collected and described the drilled core and kept track of the drilling process. In 2021, a 240 m-deep well was drilled near the Kuujjuaq Forum building to assess the deep and shallow geothermal resource potential (Miranda and et al. 2022). Analysis results suggested that a 140 m-deep ground heat exchanger (GHE) located near the Forum could be used to extract about 9.8 MWh of thermal energy per year (Géotherma Solutions Inc, 2022). A pilot project was subsequently initiated with the goal of installing a GHE, which is expected to be connected to an experimental heat pump system by the end of March 2025. The heat pump system will heat office space in the Forum building and ultimately demonstrate the use of geothermal technologies in a subarctic climate. The present report describes the field work carried from September to November 2024, during which the aforementioned borehole was extended to a depth of 450 m. The objectives were to evaluate the geothermal gradient and then to better characterize the subsurface at greater depth using various geophysical logs prior to installing the GHE. After a basic geographical and geological introduction, an overview of the drilling activities is presented, followed by a summary of the results of the well logs and finally a description of the installation of the ground heat exchanger.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.005 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.008 | 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".