Inhibition Testing with High Strength Quench and Tempered Coiled Tubing
Bibliographic record
Abstract
Abstract High strength quenched and tempered coiled tubing (CT) has been developed and commercialized as far back as the 1990s, however in recent years it has grown to be a substantial, if not the main, type of CT in many markets. Testing programs for sour environment compatibility using inhibition exist for similar strength levels of conventionally produced coiled tubing and has been used as justification for utilization of Q&T coiled tubing with existing CT equipment and operations in sour environments. Quenched and tempered coiled tubing is given final heat treatments which yield a more homogeneous microstructure than conventional products. The field performance of this homogenized product has generally shown that the quenched and tempered tubing performs better in sour environments. This paper then explores the existing body of work with respect to accepted operational guidelines and sour gas testing of coiled tubing. A test program for 140-grade quenched and tempered coiled tubing was developed to explore sour compatibility using an inhibition system. The development and test results of the testing program are described in this paper. The paper concludes with field history of high strength quenched and tempered coiled tubing in Western Canada operations.
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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".