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Record W3175577320 · doi:10.5006/c2018-11291

Oil Sands Bitumen Effect on Corrosion

2018· article· en· W3175577320 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.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldMaterials Science
TopicMaterial Selection and Properties
Canadian institutionsDevon Energy (Canada)
Fundersnot available
KeywordsAsphaltCorrosionMetallurgyMaterials scienceOil sandsNaphthenic acidPetroleum engineeringComposite materialGeology

Abstract

fetched live from OpenAlex

Abstract Corrosion susceptibility of commonly used oil sands slurry pipeline materials was evaluated with and without bitumen coating on their surface. Both linear polarization resistance (LPR) and rotating cylinder electrode (RCE) experimental techniques were used to estimate corrosion rate in a model brackish water. Five material coupons were used: two corrosion susceptible coupons, two coupons from stainless steel and one from chromium carbide overlay material. The chromium carbide overlay material was excluded from RCE experiments. Several dissolved oxygen concentrations (from 1 ppm to 9 ppm) were studied using LPR whereas RCE testing was conducted only at 5 ppm and a rotational speed of 2000 rpm. All these conditions were selected based on industrial scale experience at oil sands mine sites. In general, similar corrosion rates were observed between corrosion susceptible materials, while corrosion rate increased with increased dissolved oxygen concentration irrespective of whether the coupons surface was coated with bitumen or not. Shear force (wall shear stress or pressure drop) tends to enhance corrosion rates irrespective of a bitumen surface coating for corrosion susceptible materials. However, bitumen on the surface tends to reduce the corrosion rate significantly. Measurable corrosion rates were observed from chromium carbide overlay coupons at dissolved oxygen levels higher than 2.5 ppm. Not surprisingly, negligible corrosion was observed on stainless steel materials irrespective of coupon surface or flow condition.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
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 score0.142
Threshold uncertainty score0.995

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
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)0.0200.005

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 head0.012
GPT teacher head0.245
Teacher spread0.233 · 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

Quick stats

Citations0
Published2018
Admission routes1
Has abstractyes

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