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Record W2092202206 · doi:10.5006/1.3319093

Effect of Surface Layers on the Initiation of Internal Pitting Corrosion in Oil and Gas Pipelines

2009· article· en· W2092202206 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueCORROSION · 2009
Typearticle
Languageen
FieldMaterials Science
TopicCorrosion Behavior and Inhibition
Canadian institutionsNatural Resources Canada
FundersAustralian Government
KeywordsPitting corrosionCorrosionPipeline transportMetallurgyMaterials sciencePetroleum engineeringEnvironmental scienceGeologyEnvironmental engineering

Abstract

fetched live from OpenAlex

Experiments have been carried out in a high-temperature, high-pressure rotating electrode (HTHPRE) apparatus under 40 conditions to cover the spectrum of conditions found in oil and gas production pipelines in Western Canada. Each experiment was conducted over a period of 100 h. During the experiments, the electrodes were monitored using electrochemical noise technique. After the experiments, the surfaces of the samples were analyzed using scanning electron microscopy (SEM). Potentiodynamic polarization (PP) experiments were also conducted under the same 40 conditions. Based on the electrochemical noise, SEM, and PP data, it was found that the probability of the initiation of pitting corrosion increased with an increase in flow rate, temperature, chloride ion concentration, and anodic polarization, and decreased with an increase in oil wettability, hydrogen sulfide (H2S) partial pressure, carbon dioxide (CO2) partial pressure, total pressure, bicarbonate concentration, sulfate concentration, and cathodic polarization. The variation in the probability of initiation of pitting corrosion has been explained based on the type of surface layers formed.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.011
Threshold uncertainty score0.336

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.014
GPT teacher head0.272
Teacher spread0.258 · 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