The Implications of Water in Tight Gas – A Case Study on Shell Canada's Groundbirch Position in the Montney
Bibliographic record
Abstract
Slickwater hydraulic fracturing has become commonplace in tight gas developments as with Shell Canada's Groundbirch position in the Montney play. Water is a technical and non-technical issue for both surface and subsurface disciplines. Critical concerns pertaining to water at Groundbirch included sourcing water to stimulate wells, ensuring that the water used in hydraulic fracturing was not detrimental to the production of natural gas, and predicting the flows and potential storage volumes of water throughout the field such that water handling facilities could be appropriately designed enabling water to be optimally recycled. This thesis presents the author's work at Groundbirch as a pragmatic basis for developing a hydraulic fracturing water chemistry specification, water forecasts and balances for design considerations, and special analyses used to better quantify the mobility of water or aqueous phase trapping potential in tight gas sands, while emphasizing the importance of acquiring quality water rate and chemistry data.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".