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The Virtual Corrosion Engineer For Soil Side Corrosion Prediction And Cathodic Protection Status Monitoring

Picture for The Virtual Corrosion Engineer For Soil Side Corrosion Prediction And Cathodic Protection Status Monitoring
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Corrosion is a ubiquitous phenomenon, which can have massive impacts on the functioning of industrial assets. The threat of corrosion is exacerbated in situations where regular corrosion inspections are difficult. The Virtual Corrosion Engineer (VCE) Project within Shell is intended to offer a solution to this problem by automatically assessing the corrosion rates and threat levels in assets due to a variety of corrosion mechanisms. The VCE system has been deployed in an asset progressively since 2019.

Product Number: 51322-17677-SG
Author: Vishnu Sivadasan, Emad Daher, Tom Bos, Nicholas Laycock
Publication Date: 2022
Industries: Cathodic Protection , Corrosion Monitoring and Control
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$20.00
$20.00

Large-scale onshore oil and gas processing facilities typically include a wide range of equipment (pipelines, tanks, in-plant piping etc.) that are potentially exposed to soil-side corrosion, and this threat is usually mitigated by a combination of external coatings and cathodic protection. The status of the cathodic protection is then monitored using a variety of routine measurements, the results of which are then checked against industry standard requirements and reported as key performance indicators for the effectiveness of the corrosion mitigations. It is also possible to estimate the soil-side corrosion rate of the at-risk equipment using corrosion models which can be used as the basis for future inspection and maintenance planning. The Virtual Corrosion Engineer (VCE) project automates the handling, analysis, and visualization of the monitoring data and presents real time Key Performance Indicators and Corrosion Rate predictions in an interactive web-based dashboard.

This paper provides an overview of the VCE system for analysis of Cathodic Protection monitoring data and predictions of soil-side corrosion rates. This includes automating the ingestion of the data, generation of the Key Performance Indicators (KPI) and creation of real-time corrosion rate predictions. This paper describes some of the
challenges and solutions from this project, as well as comparison of the model corrosion rate estimates against design expectations and inspection results.

Large-scale onshore oil and gas processing facilities typically include a wide range of equipment (pipelines, tanks, in-plant piping etc.) that are potentially exposed to soil-side corrosion, and this threat is usually mitigated by a combination of external coatings and cathodic protection. The status of the cathodic protection is then monitored using a variety of routine measurements, the results of which are then checked against industry standard requirements and reported as key performance indicators for the effectiveness of the corrosion mitigations. It is also possible to estimate the soil-side corrosion rate of the at-risk equipment using corrosion models which can be used as the basis for future inspection and maintenance planning. The Virtual Corrosion Engineer (VCE) project automates the handling, analysis, and visualization of the monitoring data and presents real time Key Performance Indicators and Corrosion Rate predictions in an interactive web-based dashboard.

This paper provides an overview of the VCE system for analysis of Cathodic Protection monitoring data and predictions of soil-side corrosion rates. This includes automating the ingestion of the data, generation of the Key Performance Indicators (KPI) and creation of real-time corrosion rate predictions. This paper describes some of the
challenges and solutions from this project, as well as comparison of the model corrosion rate estimates against design expectations and inspection results.

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06163 CATHODIC PROTECTION OF PIPELINES IN HIGH RESISTIVITY SOILS AND THE EFFECT OF SEASONAL CHANGES

Product Number: 51300-06163-SG
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Author: Fraser King, Greg Van Boven, P, Nichols, Rod Reid, Kurt Lawson and Neil Thompson
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The effect of seasonal changes on the protection of pipelines in high-resistivity soil. The nature and magnitude of the seasonal fluctuations. Corrosion rates are low even when compliance with a given CP criterion cannot be demonstrated.
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07036 PRACTICAL CONSIDERATIONS FOR UPPER LIMITS OF CATHODIC PROTECTION

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This paper reviews the concerns of applying excessive levels of cathodic protection current to pipelines and the need for establishing an upper potential limit. Coating disbondment, hydrogen induced stress cracks, stress corrosion cracking, hard spots and the problems associated with measurement of a true polarized pipe-to-electrolyte potential are addressed.
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Influence of Anodic Current on Corrosion Protection Conditions of Buried Steel Pipeline Under Cathodic Protection

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The influence of anodic current on the corrosion protection conditions of buried steel pipelines at a potential less noble than -0.85 V was evaluated in test cells simulating the pipelines under long-term cathodic protection. Results are discussed.
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