Controlling Hydrogen Sulfide Using Acrolein in Produced Water and Mixed Phase Production
Bibliographic record
Abstract
Abstract Dissolved hydrogen sulfide in oilfield water or mixed production can cause a multitude of issues. While H2S can be efficiently scavenged in the gas phase with triazine or amine towers, dissolved sulfide in the water phase can be more challenging to remove, especially as the concentration of sulfide approaches parts per million (ppm) level. Using triazines is an option to scavenge dissolved sulfide but necessitates using large volumes of chemical, requiring high treatment rates, and potentially introducing new issues such as scaling due to pH increase. Acrolein is an effective oil and water-soluble sulfide scavenger most commonly used in batches of surface vessels or in downhole applications.1,2 It has also been used in North America via continuous application to scavenge low levels of H2S in both produced water and mixed phase production with few observed downstream side effects. This paper discusses historical usage of acrolein as well as recent novel applications showing marked performance benefit when compared to triazine products.
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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 | 0.001 | 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".