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51315-6134-Commercializing Conservative Raw Water Corrosion Rates—Bucketing to Probabilistics

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Product Number: 51315-6134-SG
ISBN: 6134 2015 CP
Author: Graig Cilluffo
Publication Date: 2015
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Exelon's Peach Bottom Nuclear Power Station andSIA present a novel approach for developing a conservative justifiable and commercially-sustainable corrosion rates for first-time inspections of isolated pitting corrosion phenomena in raw water piping. Data is applied on a risk-conscious basis to piping systems based upon failure consequence and uncertainty and differs from the typical approach of reporting location-specific time-averaged rates.This paper will provide:• Overview of PBAPS piping / coating design corrosion risk factors / data and performance / design history• Summaries of leak corrosion monitoring and wall thickness data for a varied flow conditions• Characterizations of operational safety financial and other risks to establish consequence of failure• Definition of a corrosion rate bracketing tool based on risk and uncertainty to prescribe corrosion rate risks•Presentation ofprobabilistic model results for internal corrosion to demonstrate value in advanced analysis• Conclusions & Recommended Actions for future integrity assessments and mitigating actionsThis investigationcombined >20 years of operating chemistry maintenance and non-destructive testing data to deliver a strong characterization of corrosion risks throughout the piping network that can be used to bracket future susceptibilities and to drive more complete corrosion prediction evaluation and mitigation projects while minimizing operational and commercial risks.
Exelon's Peach Bottom Nuclear Power Station andSIA present a novel approach for developing a conservative justifiable and commercially-sustainable corrosion rates for first-time inspections of isolated pitting corrosion phenomena in raw water piping. Data is applied on a risk-conscious basis to piping systems based upon failure consequence and uncertainty and differs from the typical approach of reporting location-specific time-averaged rates.This paper will provide:• Overview of PBAPS piping / coating design corrosion risk factors / data and performance / design history• Summaries of leak corrosion monitoring and wall thickness data for a varied flow conditions• Characterizations of operational safety financial and other risks to establish consequence of failure• Definition of a corrosion rate bracketing tool based on risk and uncertainty to prescribe corrosion rate risks•Presentation ofprobabilistic model results for internal corrosion to demonstrate value in advanced analysis• Conclusions & Recommended Actions for future integrity assessments and mitigating actionsThis investigationcombined >20 years of operating chemistry maintenance and non-destructive testing data to deliver a strong characterization of corrosion risks throughout the piping network that can be used to bracket future susceptibilities and to drive more complete corrosion prediction evaluation and mitigation projects while minimizing operational and commercial risks.
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51315-6022-Proposed External Corrosion DIrect Assessment Methodology Modification Based on a Case of Study of 110Km Buried Pipeline

Product Number: 51315-6022-SG
ISBN: 6022 2015 CP
Author: Homero Castaneda Lopez
Publication Date: 2015
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This is the final series of steps for the development of external corrosion direct assessment modification set by NACE 502 SP 2008 document.  This work aims to provide the modified methodology based on a case study of a buried pipeline that is 110 km (68.35 miles) in length and 457.2 mm (18in) in diameter.
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51315-6083-Don’t Just Blame the SRBs and APBs for MIC

Product Number: 51315-6083-SG
ISBN: 6083 2015 CP
Author: Brett Geissler
Publication Date: 2015
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Microbiologically influenced corrosion has been attributed to the activity of sulfate reducing and acid producing bacteria. Advances in DNA isolation and sequencing have revealed that these classes of bacteria often represent only a small portion of the corrosive microbial population present in the oil and gas environment.
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51315-6027-Beneficial Effect of Oil on Corrosion Inhibition at Elevated Temperatures

Product Number: 51315-6027-SG
ISBN: 6027 2015 CP
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