Unique Coil-Shifted Limited-Entry Acid Matrix Completion Overcomes Challenges of Stimulation and Wellbore Cleanup through an ESP Y-Block
Bibliographic record
Abstract
Objective A case study of an application in Iraq is presented with the aim to show the versatility of a limited entry cluster port completion system to overcome specific well challenges with "off-the-shelf" equipment designs. To overcome a unique set of challenges, a fit-for-purpose lower completion was designed to stimulate a reservoir with an acid matrix treatment, cleanup the acid, and allow for future water shut-off with an electric submersible pump (ESP) and Y-Block in place. Following the case study, a discussion is presented of the application of the system in UAE to augment the already successful Smart Liner (SL) completion system. There are many similarities between the completion presented and the SL. Advantages of using the system discussed in this paper are discussed. These advantages include: Better acid placement – especially at the toe of the wellLower pumping pressureHigher pumping ratesRe-closable nozzles allow for future shut-off of undesirable zones, water zones for example.
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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 | 0.000 | 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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.002 |
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".