An overview of methods for simulating and evaluating pipeline corrosion

R. K. Gupta, M. Y. Tan, M. Forsyth, B. R.W. Hinton

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Steel pipelines, buried under the soil and protected by the combination of protective coatings and cathodic protection (CP), are used for oil and gas transportation. These pipelines are one of the critical infrastructures for energy transportation and therefore became lifelines of modern society. The deterioration of the external surfaces of transmission pipelines is a serious problem and is caused mainly by coating and/or CP failure leading to the loss of integrity of pipelines. To avoid such damage, there is a need of techniques which are able to locate active corrosion sites, monitor corrosion, and evaluate corrosion damage. Fundamental understanding of such processes occurring on coated pipelines (with various types of defects in coatings as well as pipe) in complex soil environment is necessary for the development of such techniques. Numerous laboratory techniques, i.e., electrochemical impedance spectroscopy based, polarisation measurements based, mathematical simulations, direct observation etc. have been used to develop fundamental understanding, simulate and evaluate corrosion occurring in oil and gas pipelines under various operating conditions. Given the complex nature of the pipeline corrosion, application of these laboratory techniques in field measurements as well as in understanding the corrosion mechanisms is lacking. This paper presents an overview of investigations, based on electrochemical techniques, for simulation and evaluation of pipeline corrosion in laboratory.

Original languageEnglish
Title of host publicationAnnual Conference of the Australasian Corrosion Association 2013: Corrosion and Prevention 2013
PublisherAustralasian Corrosion Association
Pages513-521
Number of pages9
ISBN (Electronic)9781634394369
Publication statusPublished - 2013
Externally publishedYes
EventAustralasian Corrosion Association (ACA) Conference 2013: Corrosion and Prevention - Brisbane, Australia
Duration: 10 Nov 201313 Nov 2013

Conference

ConferenceAustralasian Corrosion Association (ACA) Conference 2013
Abbreviated titleCP 2013
CountryAustralia
CityBrisbane
Period10/11/1313/11/13

Keywords

  • Cathodic disbondment
  • Cathodic protection
  • Electrochemical impedance spectroscopy
  • Pipeline corrosion
  • Stray current

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