Analysis of external corrosion protection performance on buried gas pipeline using CIPS and DCVG methods

The present work investigates the effectiveness of external corrosion protection using Close Interval Potential Survey (CIPS) and Direct Current Voltage Gradient (DCVG) on a buried gas pipeline. These surveys were performed on 12” gas pipeline in East Kalimantan. Coating and cathodic protection were...

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Main Authors: Dzakyprasetyo Reyan Qowi, Ferdian Deni
Format: Article
Language:English
Published: EDP Sciences 2024-01-01
Series:ITM Web of Conferences
Subjects:
Online Access:https://www.itm-conferences.org/articles/itmconf/pdf/2024/04/itmconf_iscpms2024_01022.pdf
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author Dzakyprasetyo Reyan Qowi
Ferdian Deni
author_facet Dzakyprasetyo Reyan Qowi
Ferdian Deni
author_sort Dzakyprasetyo Reyan Qowi
collection DOAJ
description The present work investigates the effectiveness of external corrosion protection using Close Interval Potential Survey (CIPS) and Direct Current Voltage Gradient (DCVG) on a buried gas pipeline. These surveys were performed on 12” gas pipeline in East Kalimantan. Coating and cathodic protection were the primary corrosion protection on these pipelines. Soil resistivity measurement was conducted every km along the pipeline to obtain the resistivity profile combined with the pH profile. CIPS showed that the Cathodic Protection system protects 79.21 % of the pipeline area. There is no sign of telluric or stray current effect from the result of CIPS. DCVG showed 159 defects that can be divided into three different clusters. There is 6-point coating defects that should be repaired immediately due to the characteristics and category of the defect. The integrated data analysis of CIPS and DCVG showed a correlation which dips pattern on CIPS graph indicating coating defect on DCVG surveyed. Soil resistivity measurement showed that the soil resistivity profile is negligible from KP 0 – 5, while KP 5 – 14 is mildly corrosive. pH measurement showed the acidity level or the soil along the pipeline were neutral. Cathodic protection level could be improved with the increase of cathodic protection current and coating repair along the area with low-level protection.
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spelling doaj.art-504c643948224119bf85c5862143999e2024-01-26T16:48:07ZengEDP SciencesITM Web of Conferences2271-20972024-01-01610102210.1051/itmconf/20246101022itmconf_iscpms2024_01022Analysis of external corrosion protection performance on buried gas pipeline using CIPS and DCVG methodsDzakyprasetyo Reyan Qowi0Ferdian Deni1Department of Metallurgy and Material, Faculty of Engineering, Universitas IndonesiaDepartment of Metallurgy and Material, Faculty of Engineering, Universitas IndonesiaThe present work investigates the effectiveness of external corrosion protection using Close Interval Potential Survey (CIPS) and Direct Current Voltage Gradient (DCVG) on a buried gas pipeline. These surveys were performed on 12” gas pipeline in East Kalimantan. Coating and cathodic protection were the primary corrosion protection on these pipelines. Soil resistivity measurement was conducted every km along the pipeline to obtain the resistivity profile combined with the pH profile. CIPS showed that the Cathodic Protection system protects 79.21 % of the pipeline area. There is no sign of telluric or stray current effect from the result of CIPS. DCVG showed 159 defects that can be divided into three different clusters. There is 6-point coating defects that should be repaired immediately due to the characteristics and category of the defect. The integrated data analysis of CIPS and DCVG showed a correlation which dips pattern on CIPS graph indicating coating defect on DCVG surveyed. Soil resistivity measurement showed that the soil resistivity profile is negligible from KP 0 – 5, while KP 5 – 14 is mildly corrosive. pH measurement showed the acidity level or the soil along the pipeline were neutral. Cathodic protection level could be improved with the increase of cathodic protection current and coating repair along the area with low-level protection.https://www.itm-conferences.org/articles/itmconf/pdf/2024/04/itmconf_iscpms2024_01022.pdfcathodic protectioncoating defectcipsdcvg
spellingShingle Dzakyprasetyo Reyan Qowi
Ferdian Deni
Analysis of external corrosion protection performance on buried gas pipeline using CIPS and DCVG methods
ITM Web of Conferences
cathodic protection
coating defect
cips
dcvg
title Analysis of external corrosion protection performance on buried gas pipeline using CIPS and DCVG methods
title_full Analysis of external corrosion protection performance on buried gas pipeline using CIPS and DCVG methods
title_fullStr Analysis of external corrosion protection performance on buried gas pipeline using CIPS and DCVG methods
title_full_unstemmed Analysis of external corrosion protection performance on buried gas pipeline using CIPS and DCVG methods
title_short Analysis of external corrosion protection performance on buried gas pipeline using CIPS and DCVG methods
title_sort analysis of external corrosion protection performance on buried gas pipeline using cips and dcvg methods
topic cathodic protection
coating defect
cips
dcvg
url https://www.itm-conferences.org/articles/itmconf/pdf/2024/04/itmconf_iscpms2024_01022.pdf
work_keys_str_mv AT dzakyprasetyoreyanqowi analysisofexternalcorrosionprotectionperformanceonburiedgaspipelineusingcipsanddcvgmethods
AT ferdiandeni analysisofexternalcorrosionprotectionperformanceonburiedgaspipelineusingcipsanddcvgmethods