An improvement on direct assessment method for internal corrosion of natural gas pipeline
Direct assessment for internal corrosion of gas pipeline is an important method to assess the internal corrosion of pipelines. In order to improve the applicability and accuracy of direct assessment method for internal corrosion, the influence of CO2 electrochemical corrosion and particle erosion on...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Oil & Gas Storage and Transportation
2022-02-01
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| Series: | You-qi chuyun |
| Subjects: | |
| Online Access: | http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.02.012 |
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| author | Fei XIE Jiahang LI Guofu WANG Xinqiang WANG Dacheng GUO Jintao JIANG |
| author_facet | Fei XIE Jiahang LI Guofu WANG Xinqiang WANG Dacheng GUO Jintao JIANG |
| author_sort | Fei XIE |
| collection | DOAJ |
| description | Direct assessment for internal corrosion of gas pipeline is an important method to assess the internal corrosion of pipelines. In order to improve the applicability and accuracy of direct assessment method for internal corrosion, the influence of CO2 electrochemical corrosion and particle erosion on the internal corrosion of pipeline was studied through electrochemical testing and numerical simulation. At the same time, the influence of pipeline inclination and liquid holdup on electrochemical corrosion was also analyzed. The research results show that: The influence of electrochemical corrosion on the internal corrosion of the gas pipeline is much greater than that of particle erosion, but the particle erosion can accelerate the electrochemical corrosion. Specifically, the greater the inclination of the pipeline, the higher the liquid holdup, and the more serious the corrosion is. In addition, the long uphill section of pipeline with a smaller inclination is prone to corrosion. Thereby, a new direct assessment method for internal corrosion of natural gas pipelines was proposed and applied to a natural gas pipeline in Panjin. The assessment results show that, compared with the original method, this improved method can more accurately identify the location of water accumulation in the pipeline, compare the corrosion risk of each place of water accumulation, and thus provide new theory and technical support for the assessment of internal corrosion in natural gas pipelines. ( |
| first_indexed | 2024-04-24T10:05:15Z |
| format | Article |
| id | doaj.art-688d413649cd4c3ea07d2cce4e86e9a4 |
| institution | Directory Open Access Journal |
| issn | 1000-8241 |
| language | zho |
| last_indexed | 2024-04-24T10:05:15Z |
| publishDate | 2022-02-01 |
| publisher | Editorial Office of Oil & Gas Storage and Transportation |
| record_format | Article |
| series | You-qi chuyun |
| spelling | doaj.art-688d413649cd4c3ea07d2cce4e86e9a42024-04-13T02:28:16ZzhoEditorial Office of Oil & Gas Storage and TransportationYou-qi chuyun1000-82412022-02-0141221922610.6047/j.issn.1000-8241.2022.02.012yqcy-41-2-219An improvement on direct assessment method for internal corrosion of natural gas pipelineFei XIE0Jiahang LI1Guofu WANG2Xinqiang WANG3Dacheng GUO4Jintao JIANG5College of Petroleum Engineering, Liaoning Petrochemical University//Liaoning Key Laboratory of Oil and Gas Storage and Transportation TechnologyCollege of Petroleum Engineering, Liaoning Petrochemical University//Liaoning Key Laboratory of Oil and Gas Storage and Transportation TechnologyCollege of Petroleum Engineering, Liaoning Petrochemical University//Liaoning Key Laboratory of Oil and Gas Storage and Transportation TechnologyCollege of Petroleum Engineering, Liaoning Petrochemical University//Liaoning Key Laboratory of Oil and Gas Storage and Transportation TechnologyPetroChina Liaohe Oilfield Oil and Gas Gathering and Transportation CompanyPetroChina Liaohe Oilfield Oil and Gas Gathering and Transportation CompanyDirect assessment for internal corrosion of gas pipeline is an important method to assess the internal corrosion of pipelines. In order to improve the applicability and accuracy of direct assessment method for internal corrosion, the influence of CO2 electrochemical corrosion and particle erosion on the internal corrosion of pipeline was studied through electrochemical testing and numerical simulation. At the same time, the influence of pipeline inclination and liquid holdup on electrochemical corrosion was also analyzed. The research results show that: The influence of electrochemical corrosion on the internal corrosion of the gas pipeline is much greater than that of particle erosion, but the particle erosion can accelerate the electrochemical corrosion. Specifically, the greater the inclination of the pipeline, the higher the liquid holdup, and the more serious the corrosion is. In addition, the long uphill section of pipeline with a smaller inclination is prone to corrosion. Thereby, a new direct assessment method for internal corrosion of natural gas pipelines was proposed and applied to a natural gas pipeline in Panjin. The assessment results show that, compared with the original method, this improved method can more accurately identify the location of water accumulation in the pipeline, compare the corrosion risk of each place of water accumulation, and thus provide new theory and technical support for the assessment of internal corrosion in natural gas pipelines. (http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.02.012natural gas pipelinedirect assessment for internal corrosionwater accumulation locationelectrochemical corrosionpaticle erosionrisk ranking |
| spellingShingle | Fei XIE Jiahang LI Guofu WANG Xinqiang WANG Dacheng GUO Jintao JIANG An improvement on direct assessment method for internal corrosion of natural gas pipeline You-qi chuyun natural gas pipeline direct assessment for internal corrosion water accumulation location electrochemical corrosion paticle erosion risk ranking |
| title | An improvement on direct assessment method for internal corrosion of natural gas pipeline |
| title_full | An improvement on direct assessment method for internal corrosion of natural gas pipeline |
| title_fullStr | An improvement on direct assessment method for internal corrosion of natural gas pipeline |
| title_full_unstemmed | An improvement on direct assessment method for internal corrosion of natural gas pipeline |
| title_short | An improvement on direct assessment method for internal corrosion of natural gas pipeline |
| title_sort | improvement on direct assessment method for internal corrosion of natural gas pipeline |
| topic | natural gas pipeline direct assessment for internal corrosion water accumulation location electrochemical corrosion paticle erosion risk ranking |
| url | http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.02.012 |
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