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Record W1975283221 · doi:10.2118/71585-ms

New Analytical Solutions for Predicting Pressure Distribution and Transient Behavior in Wedges and Truncated Wedges

2001· article· en· W1975283221 on OpenAlexaff
N. M. Anisur Rahman, Ramon G. Bentsen

Bibliographic record

VenueSPE Annual Technical Conference and Exhibition · 2001
Typearticle
Languageen
FieldEngineering
TopicHydraulic Fracturing and Reservoir Analysis
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsWedge (geometry)Transient (computer programming)Distribution (mathematics)Computer scienceMathematicsApplied mathematicsMathematical analysisGeometry

Abstract

fetched live from OpenAlex

Abstract Reservoirs of various shapes are encountered in practice. Evidence of wedges and truncated wedges has been found in Texas, Louisiana and elsewhere. In most situations, predicting the pressure distribution and transient behavior becomes very difficult due to a lack of necessary mathematical solutions. However, analytical solutions are often used for such purposes, even though it may have been necessary to compromise the geometry of the actual reservoir to obtain a solution. In the literature, analytical solutions for wedges are available. Application of these solutions very often forces the use of an approximate value of the wedge angle instead of the actual value. As a result, a considerable amount of error may be introduced into the predicted pressure responses. Moreover, no solutions for truncated wedges have been reported in the literature. In this study, an integral-transform technique (ITT) has been used to develop new analytical solutions that overcome the limitations of the existing solutions in the literature.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.006

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.020
GPT teacher head0.257
Teacher spread0.237 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

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".

Quick stats

Citations1
Published2001
Admission routes1
Has abstractyes

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