AMPP Store - Products tagged with 'cathodic protection'

CP Virtual Training Simulator Subscription - One Year CP Virtual Training Simulator Access

Product Number: CPVIRTUALTRAININGSIMULATOR

$429.00

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Datascience To Enhance Pipeline Maintenance

Product Number: 51322-17508-SG

Author: David Toschini, Markéta Lallementová, Anthony Dequick, Bernard Masson, Thomas Zamojski

Publication Date: 2022

$20.00

The paper will cover the construction method (based on Random forest algorithms), the first results. We will see the enhancements of the model by injecting more data and modifying mathematical rule, and how it will be able to integrate a new decision support tool.

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DC Decoupler Modelling To Predict The Effects Of Capacitance On CP Potential Surveys

Product Number: 51322-17839-SG

Author: Alex Ristow, Mike Tachick

Publication Date: 2022

$20.00

Extensive and increased collocation of high voltage AC (HVAC) electrical transmission lines, coupled with advances in coating technology, has resulted in the emergence of the possibility of transfer of electrical energy from the HVAC line to paralleling utilities through electrical induction. That transfer of energy can result in safety risks for personnel, as well as corrosion risks for below grade assets. In order to mitigate those risks, operators ground the induced AC using grounding electrodes, typically consisting of bare copper cabling or zinc ribbon.

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Dealing with Pipelines Positive Potential a Case of Study

Product Number: 51317--9202-SG

ISBN: 9202 2017 CP

Author: Javier Montanez Villamizar

Publication Date: 2017

$20.00

The pipeline is the Gibraltar-Bucaramanga Gas Pipeline which is divided in two electrically isolated sections by the use of a monolithic joint. The study concluded that it was necessary to complete additional actions to guarantee pipeline integrity, and to assure low corrosion rates.

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Design and Implementation of an Offshore Remote Monitoring System for Corrosion, Coating and Cathodic Protection Performance

Product Number: 51323-19265-SG

Author: Andreas Junker Olesen, Lars Vendelbo Nielsen, Lisbeth Rischel Hilbert, Frank Fontenay

Publication Date: 2023

$20.00

Remote monitoring of corrosion and cathodic protection using various methods have matured for decades with the onshore pipeline industry. With increasing activity offshore, and the highly corrosive and inaccessible environment taken into consideration, it is only natural that remote monitoring technology will find its way into this field. Offshore structures of steel are protected against corrosion with protective coatings and/or cathodic protection.

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Detecting Hidden Integrity Threats Using CP Current In-Line Inspection Tools

Product Number: 51317--8883-SG

ISBN: 8883 2017 CP

Author: David Williams

Publication Date: 2017

$20.00

This paper provides case histories from four (4) successful Cathodic Protection Current In-line Inspections (CPC-ILI). Details of the findings and actions taken by the clients are presented.

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Discussion On AC Corrosion Mechanism And Risk Assessment For Cathodically Protected Pipelines

Product Number: 51321-16978-SG

Author: Yanxia Du; Yi Liang; Sili Xie; Lei Zhang

Publication Date: 2021

$20.00

Available for download

Effect of Chemical Environment and pH on AC Corrosion of Cathodically Protected Structures

Product Number: 51317--9352-SG

ISBN: 9352 2017 CP

Author: Andreas Junker-Holst

Publication Date: 2017

$20.00

AC corrosion of structures under cathodic protection (CP) is a major concern for pipelines. This work investigates the effect of soil constituents - earth alkali elements Ca and Mg - believed to have a large influence on the precipitation of hydroxides and carbonates in front of a coating damage.

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Effect of Dissolved Oxygen on Fatigue Crack Growth Rate of Low Alloy Steels in Saltwater with Cathodic Protection Environment

Product Number: 51323-18913-SG

Author: Arshad Bajvani Gavanluei, Jenny Crump, Joseph Wilhelmi, Jack Smith, Paul D. Bunch

Publication Date: 2023

$20.00

Low alloy steels (LAS) are widely used in the marine and offshore oil and gas industry for various applications from bolting to large pressure containing heavy wall forgings. These materials are subject to various types of corrosion (general or uniform, pitting, crevice, etc.) and degradation in seawater environment. However, their selection for the applications, in comparison with stainless steels and corrosion resistant alloys, is justified due to their availability, manufacturability, proven service history, and lower cost.

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Effect of Environmental and Flow Process Conditions on Impressed Current Cathodic Protection System in a Petrochemical Installation

Product Number: 51324-20619-SG

Author: Ernesto Santana; Kent Jedig; Lars Jung;

Publication Date: 2024

$40.00

The protection against corrosion of the pipelines of the Crossbridge refinery in the West of Denmark is described in this paper. During years the pipelines in this refinery suffered significant external corrosion despite a Cathodic Protection, CP, system was in place to protect two different environments, onshore and offshore, from one sole location. Of all the pipelines being under cathodic protection, one suffered from severe corrosion at specific locations. Initially, the CP system was intensively evaluated with the outcome that a replacement of the pipeline was the best option. However, only after detail investigation of the process, the installation of online ER-probes to monitor current, potential and corrosion rates and the evaluation of the foreign pipelines the possible issues were identified. Environmental conditions, soil and sea water resistivity, flow temperatures and foreign district heating pipeline all affected the corrosion of the largest of the export pipeline, a 24” pipeline. Conclusions of the investigation, updated design and mitigation measures will be described in this paper.

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Effect Of Soil Environment On Hydrogen Embrittlement Behavior Of X60 Steel

Product Number: 51322-17705-SG

Author: Wang Xiuyun, Yang Zhiwen, Wang Yao, Xing Yunying, Feng Min, Chen Yingfeng, Liu Xiaotong, Zhang Lei

Publication Date: 2022

$20.00

With the rapid development of China's economy, energy and transportation industries have developed rapidly, and more and more oil and gas pipelines and urban rail transit have been built and put into use. Urban rail transportation systems, such as subways or light rail, generally use direct current traction and backflow through the rail. Because the track is not completely insulated from the earth, it is inevitable that some electric current will be discharged from the track to the earth to form stray electric current, which will cause interference to the surrounding metal components such as buried oil and gas pipelines.

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Effective Pipeline Corrosion Monitoring in Regions Impacted by External DC Polarization Factors

Product Number: 51324-21132-SG

Author: Angel R. Kowalski; Jason Charles Land; W. Brain Holtsbaum

Publication Date: 2024

$40.00

Effective pipeline external corrosion control can be achieved by maintaining an adequate balance between the coating condition and the cathodic protection level. When a pipeline is in a corridor shared with parallel buried pipelines and high voltage alternating current (HVAC) power transmission lines, determining the adequacy of the cathodic protection (CP) system becomes a challenge. Misinterpretation of data being collected, or unreliable data can lead to the implementation of either ineffective or excessive mitigation programs for these pipelines. To obtain a better representation of the year-round performance of the CP system, additional testing to the conventional adjustive survey or close interval potential survey (CIPS or CIS) might be required on transmission pipelines collocated in HVAC corridors. The variation of the structure-to-electrolyte potential values over time and the effect of polarization cell replacement (PCR) units should be assessed when determining the level of polarization of the pipeline. Data from a case study is analyzed to illustrate additional testing procedures required to minimize the effects of HVAC systems when monitoring the CP level on transmission pipelines. The proper interpretation of the field monitoring data allows pipeline operators to develop and implement effective corrosion control mitigation plans.

Products tagged with 'cathodic protection'

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