Gas flood-Flow Pattern Evaluation: Mesozoic Chiapas-Tabasco Basin Field Revisited
Bibliographic record
Abstract
Abstract A gas interwell tracer program was designed and implemented to characterize the flow stream within the current injection/production pattern of the central part of the Mesozoic Chiapas-Tabasco Basin.The field includes one injector and four producers.Due to production, the average reservoir pressure fell and approached the dew point at reservoir conditions.Natural gas was injected to maintain reservoir pressure and optimize condensate production.A chemical interwell tracer was also injected to detect and evaluate the magnitude of any communication between the injection and production wells and to track the areal flow pattern within the field.The study was designed for 18 months and commenced in December 2000 and terminated in mid 2002.The results from the sample analyses provided information on the magnitude of highly permeable channels between the injector and producers as well as flow patterns within the field.Furthermore, the results provided valuable information on breakthrough time and fluid travel time.Sampling discontinued for over a year.In late 2003, it was decided to collect more samples from the same four production wells as well as one of the offset wells.The new sample analysis results indicated tracer concentrations at high levels from all of the wells except one.Based on these new results, a new sweep efficiency and total volume swept between the injection and production wells were calculated and are presented.Finally, an overview of formation heterogeneity, based on the three years interwell tracer study, is presented.
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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) | 0.001 | 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".