Bibliographic record
Abstract
Novel Surveillance Helps Operators Track Damage Kenneth G. Brown; Kenneth G. Brown Schlumberger Holditch-Reservoir Technologies Consulting Services Search for other works by this author on: This Site Google Scholar Walter K. Sawyer Walter K. Sawyer Schlumberger Holditch-Reservoir Technologies Consulting Services Search for other works by this author on: This Site Google Scholar Paper presented at the SPE Gas Technology Symposium, Calgary, Alberta, Canada, April 2002. Paper Number: SPE-75713-MS https://doi.org/10.2118/75713-MS Published: April 30 2002 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Brown, Kenneth G., and Walter K. Sawyer. "Novel Surveillance Helps Operators Track Damage." Paper presented at the SPE Gas Technology Symposium, Calgary, Alberta, Canada, April 2002. doi: https://doi.org/10.2118/75713-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Unconventional Resources Conference / Gas Technology Symposium Search Advanced Search Abstract As part of an ongoing study sponsored by the Gas Technology Institute, new technology has been developed that provides storage operators with a cost effective method to frequently monitor wellbore damage with reasonable accuracy. Two procedures were developed and tested, the Sawyer-Brown Method (SB Method) and the Minute-Rise Deconvolution Method (MRD Method). These procedures are inexpensive, since no service company personnel or down-hole equipment is required. Consequently, the wells can be tested at much more frequent intervals than is typical of current testing methods.The theoretical basis of each method is developed. The successful application of the SB Method is demonstrated using conventional deliverability test data and verified using multiple rate pressure transient tests in which bottom hole pressure gauges were used. The theoretical basis of the MRD Method is validated using simulated data. Difficulties encountered in the practical application of the MRD Method are presented and discussed. Areas of additional work are identified and guidelines for the implementation of these methods are presented. Keywords: total skin, spe 75713, pressure transient analysis, afterflow rate, deliverability test data, non-darcy factor, deliverability test, md wb coefficient 0, determination, operator Subjects: Well & Reservoir Surveillance and Monitoring, Formation Evaluation & Management, Pressure transient analysis, Drillstem/well testing Copyright 2002, Society of Petroleum Engineers You can access this article if you purchase or spend a download.
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.019 | 0.006 |
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".