Square Motor Used to Reduce Drag while Maximizing Penetration Rates
Bibliographic record
Abstract
Abstract Extended power section motors have been used, together with low-viscosity muds; to dramatically increase instantaneous penetration rates in tectonically stressed areas of Western Canada. However, these penetration rate increases have been accompanied by doglegs induced by steep formation dips and faulting. Steering, required to remain on course, induces further doglegs. The result of such a tortuous wellpath has been high drag. In order to reduce the drag, motor drilled holes have been reamed on time consuming, dedicated trips made with square drill collars. A square motor has been developed to combine the penetration rate benefits of extended power section mud motors with the stiffness characteristics of a square drill collar. The square motor has been used in the drilling of wells in a number of tectonically stressed fields, and has demonstrated: Instantaneous penetration rates equal to or better than those obtained with conventional (round) motors Reliable directional characteristics, especially given the tectonically stressed state of the formations being drilled Significant reduction in drag when tangent sections are drilled with square motors rather than steered with directional motors Elimination of reaming time through square motor drilled intervals
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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) | 0.001 | 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".