Stress Analysis of the Integrity of Casing-Cement Ring-Structural Consolidation Body by Volume Fracturing
Bibliographic record
Abstract
For unconventional oil and gas reservoirs, the main body at home and abroad adopts segmented fracturing technology for cemented well completion bridge plugs, and the application ratio accounts for more than 85%. In order to improve the development effect of the tight oil and gas reservoirs in the Ordos Basin and increase the output of single wells, the horizontal wells in the Sulige tight gas reservoir adopt casing cementing well completion + bridge plug fracturing. The integrity between the casing-cement ring and the formation consolidation body is the precondition for ensuring the effectiveness of the segmented fracturing closure and the transformation effect. In this paper, the wellbore is subjected to alternating pressure when the volume of horizontal wells is compressed. By analyzing the force of the casing-cement-soil consolidated body and the temperature and casing internal pressure, the calculated relationship between the force of the consolidated body and the displacement of the first and second cemented surfaces was obtained. It provides an important reference for guiding the on-site construction design and follow-up research.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".