Sensitivity Analysis of Influencing Factors of Gas Pipelines with Corrosion Defects under the Action of Landslides
Sensitivity analysis aids in determining important factors affecting pipeline safety. Sensitivity analysis of stress inside gas pipelines with corrosion defects in a landslide region can provide a theoretical basis for the safe operation of pipelines. This study considered an X80 high-grade steel ga...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/18/6640 |
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| author | Xiaoting Gu Yaoyao Zhang Chunfeng Huang Xi Luo Hailun Zhang Rui Zhou Yijie Qiu |
| author_facet | Xiaoting Gu Yaoyao Zhang Chunfeng Huang Xi Luo Hailun Zhang Rui Zhou Yijie Qiu |
| author_sort | Xiaoting Gu |
| collection | DOAJ |
| description | Sensitivity analysis aids in determining important factors affecting pipeline safety. Sensitivity analysis of stress inside gas pipelines with corrosion defects in a landslide region can provide a theoretical basis for the safe operation of pipelines. This study considered an X80 high-grade steel gas pipeline model with corrosion defects using finite element analysis (ABAQUS software) under lateral landslide conditions. Particularly, we studied the six major engineering elements of soil cohesion to understand the stress variations in buried gas pipelines and performed a sensitivity analysis of each influencing parameter. The calculation results revealed that all the factors influencing the stress in corroded gas pipelines during landslide conditions were positively correlated to the internal pipe stress, except for the axial position of corrosion defects. The factors in the descending order of influence on the sensitivity coefficient are stated as follows: landslide displacement, axial position of corrosion defect, soil cohesion, depth of corrosion defect, pressure, and length of corrosion defect. The results of this study will aid in the design and implementation of such pipelines in mountainous or other landslide-prone terrains. |
| first_indexed | 2024-03-10T00:09:09Z |
| format | Article |
| id | doaj.art-69c3c21f5d674122ac3d8b31f1e39a18 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T00:09:09Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-69c3c21f5d674122ac3d8b31f1e39a182023-11-23T16:03:13ZengMDPI AGEnergies1996-10732022-09-011518664010.3390/en15186640Sensitivity Analysis of Influencing Factors of Gas Pipelines with Corrosion Defects under the Action of LandslidesXiaoting Gu0Yaoyao Zhang1Chunfeng Huang2Xi Luo3Hailun Zhang4Rui Zhou5Yijie Qiu6School of Petroleum Engineering, Yangtze University, Wuhan 430100, ChinaGudao Oil Production Plant, Shengli Oilfield Company of Sinopec, Dongying 257231, ChinaShengli Oilfield Petroleum Development Center Co., Ltd., Dongying 257100, ChinaCNOOC Safety & Technology Services Co., Ltd., Beijing 100070, ChinaSchool of Petroleum Engineering, Yangtze University, Wuhan 430100, ChinaSchool of Petroleum Engineering, Yangtze University, Wuhan 430100, ChinaSchool of Petroleum Engineering, Yangtze University, Wuhan 430100, ChinaSensitivity analysis aids in determining important factors affecting pipeline safety. Sensitivity analysis of stress inside gas pipelines with corrosion defects in a landslide region can provide a theoretical basis for the safe operation of pipelines. This study considered an X80 high-grade steel gas pipeline model with corrosion defects using finite element analysis (ABAQUS software) under lateral landslide conditions. Particularly, we studied the six major engineering elements of soil cohesion to understand the stress variations in buried gas pipelines and performed a sensitivity analysis of each influencing parameter. The calculation results revealed that all the factors influencing the stress in corroded gas pipelines during landslide conditions were positively correlated to the internal pipe stress, except for the axial position of corrosion defects. The factors in the descending order of influence on the sensitivity coefficient are stated as follows: landslide displacement, axial position of corrosion defect, soil cohesion, depth of corrosion defect, pressure, and length of corrosion defect. The results of this study will aid in the design and implementation of such pipelines in mountainous or other landslide-prone terrains.https://www.mdpi.com/1996-1073/15/18/6640lateral landslidecorrosion defectgas pipelinestresssensitivity analysis |
| spellingShingle | Xiaoting Gu Yaoyao Zhang Chunfeng Huang Xi Luo Hailun Zhang Rui Zhou Yijie Qiu Sensitivity Analysis of Influencing Factors of Gas Pipelines with Corrosion Defects under the Action of Landslides Energies lateral landslide corrosion defect gas pipeline stress sensitivity analysis |
| title | Sensitivity Analysis of Influencing Factors of Gas Pipelines with Corrosion Defects under the Action of Landslides |
| title_full | Sensitivity Analysis of Influencing Factors of Gas Pipelines with Corrosion Defects under the Action of Landslides |
| title_fullStr | Sensitivity Analysis of Influencing Factors of Gas Pipelines with Corrosion Defects under the Action of Landslides |
| title_full_unstemmed | Sensitivity Analysis of Influencing Factors of Gas Pipelines with Corrosion Defects under the Action of Landslides |
| title_short | Sensitivity Analysis of Influencing Factors of Gas Pipelines with Corrosion Defects under the Action of Landslides |
| title_sort | sensitivity analysis of influencing factors of gas pipelines with corrosion defects under the action of landslides |
| topic | lateral landslide corrosion defect gas pipeline stress sensitivity analysis |
| url | https://www.mdpi.com/1996-1073/15/18/6640 |
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