Acid Gas Injection at SemCAMS Kaybob Amalgamated (KA) Gas Plant Operational Design Considerations
Bibliographic record
Abstract
SemCAMS currently owns and operates the Kaybob Amalgamated (KA) sour gas processing facility, located near Fox Creek, Alberta. The gas plant takes gas from various sweet and sour inlets and processes these streams to produce sales specification gas, LPG and C5+ products. With reduced plant throughput and lower H2S concentration in the feed stream to the Sulfur Recovery Unit, the existing sulfur plant was operating below the design turndown rates, which impacts the performance and reliability of the entire facility. SemCAMS decided to decommission the sulfur plant in Q2 2018 and replace it with acid gas compression that will inject acid gas into a disposal well drilled on the plant lease. The GLE scope of work was to complete detailed engineering (process, civil, mechanical, electrical, instrumentation and controls) of the two acid gas injection compressors, including the suction piping from the existing acid gas knockout drum, the discharge piping to the wellhead, as well as utility piping to/from the compressors (instrument air, fuel gas, flare, drains, etc.). Major project decisions and design aspects are reviewed and discussed with a focus on capital & operational cost, challenges, issues, and lessons learned relating to process modelling and operational design. Process modelling topics discussed include: steady state and dynamic modelling for the AGI system; flare system design; compression capacity control; hydrate formation prevention during system blowdown; methanol injection for hydrate prevention; prediction of water content/hydrate formation temperatures within the AGI system and finally overpressure protection of compression equipment and the injection line. Operational design topics discussed include: Inherently Safety Design (ISD) strategies; material selection for compression equipment and the injection line, air cooler design, impact of leak scenarios on the existing plant and AGI system design; freeze protection; considerations for depressurization duration and acid gas flaring scenarios; and impact of the existing plant safety practises on the addition of the AGI system.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.006 | 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".