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Record W1990021136 · doi:10.5339/qfarf.2013.eep-05

Predicting offshore oil and gas pipelines condition

2013· article· en· W1990021136 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

VenueQatar Foundation Annual Research Forum Volume 2013 Issue 1 · 2013
Typearticle
Languageen
FieldEngineering
TopicStructural Integrity and Reliability Analysis
Canadian institutionsConcordia University
Fundersnot available
KeywordsPipeline transportSubmarine pipelineRobustness (evolution)Petroleum engineeringPipeline (software)Artificial neural networkEngineeringComputer scienceMarine engineeringReliability engineeringEnvironmental scienceMachine learningEnvironmental engineeringGeotechnical engineering

Abstract

fetched live from OpenAlex

Crude oil and gas products transported using pipelines systems is safe and economical all over the the world. Nonetheless, such pipelines can still be subject to various degrees of failure and degradation generating hazardous consequences and severe environmental damages. As a result, it is important for these pipelines to be effectively monitored and assessed for optimal operation. Many models have been developed to predict pipeline failures and conditions. However, most of these models were limited to use corrosion features as the only factor to assess the condition of pipelines which can lead to inaccurate condition prediction. Therefore, the main aim of this paper is to develop models that predict the condition of offshore oil and gas pipelines based on several other factors including corrosion. Regression analysis and artificial neural network (ANN) techniques were used to develop condition prediction models based on historical inspection data of three existing pipelines in Qatar. In addition, a condition assessment scale for pipelines was built based on experts' opinion. All necessary statistical diagnosis have been checked showing sound results for the developed models. The models have been validated and the results showed their robustness with an average validity percentage from 96 to 99%. The models are expected to help pipeline operators to assess and predict the condition of existing oil and gas pipelines and hence prioritize their inspections and rehabilitation planning.

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)0.001
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: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.512
Threshold uncertainty score0.998

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0060.003

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 head0.021
GPT teacher head0.310
Teacher spread0.289 · 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