Engineering Critical Assessment of Offshore Pipelines under Operational Loading Phase According to BS 7910 Guideline
Offshore pipelines are an efficient long-distance transportation method for oil and gas. These are usually constructed by the use of girth welds, while welds may naturally contain flaws. Hence, it is essential to inspect the fracture response of girth welds in order to check the structural integrity...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Iranian Association of Naval Architecture and Marine Engineering
2016-03-01
|
| Series: | International Journal of Coastal and Offshore Engineering |
| Subjects: | |
| Online Access: | http://ijcoe.org/article-1-30-en.html |
| _version_ | 1811339474621169664 |
|---|---|
| author | Seyed Mohammad Hossein Sharifi Mehran Kaveh Hamed Saeidi Googarchin |
| author_facet | Seyed Mohammad Hossein Sharifi Mehran Kaveh Hamed Saeidi Googarchin |
| author_sort | Seyed Mohammad Hossein Sharifi |
| collection | DOAJ |
| description | Offshore pipelines are an efficient long-distance transportation method for oil and gas. These are usually constructed by the use of girth welds, while welds may naturally contain flaws. Hence, it is essential to inspect the fracture response of girth welds in order to check the structural integrity of the pipeline. One of the guidelines that is using wide spread for investigating the fracture response of steel structures is BS 7910 which is based on Engineering Critical Assessment (ECA) method. In this paper Engineering Critical Assessment (ECA) of offshore pipeline girth welds is done according to BS 7910 through Crackwise software and the influence of several parameters on ECA is presented. It is concluded that Influence of misalignment on axial internal surface flaws is more significant than on axial external flaws. Furthermore it is observed that internal surface flaws have always larger values for tolerable defect heights than external surface cracks. In addition, circumferential surface flaws have evermore larger amount of acceptance level in defect heights than axial flaws. |
| first_indexed | 2024-04-13T18:27:13Z |
| format | Article |
| id | doaj.art-13763da1af4e4208903c04c4e8b88113 |
| institution | Directory Open Access Journal |
| issn | 2538-2667 2588-3186 |
| language | English |
| last_indexed | 2024-04-13T18:27:13Z |
| publishDate | 2016-03-01 |
| publisher | Iranian Association of Naval Architecture and Marine Engineering |
| record_format | Article |
| series | International Journal of Coastal and Offshore Engineering |
| spelling | doaj.art-13763da1af4e4208903c04c4e8b881132022-12-22T02:35:12ZengIranian Association of Naval Architecture and Marine EngineeringInternational Journal of Coastal and Offshore Engineering2538-26672588-31862016-03-0111523Engineering Critical Assessment of Offshore Pipelines under Operational Loading Phase According to BS 7910 GuidelineSeyed Mohammad Hossein Sharifi0Mehran Kaveh1Hamed Saeidi Googarchin2 Assisstant Professor, Faculty of Marine Science, Petroleum University of Technology M.Sc Student, Faculty of Marine Science, Petroleum University of Technology, Abadan, Iran Assistant Professor, School of Automotive Engineering, Iran University of Science and Technology, Tehran, Iran Offshore pipelines are an efficient long-distance transportation method for oil and gas. These are usually constructed by the use of girth welds, while welds may naturally contain flaws. Hence, it is essential to inspect the fracture response of girth welds in order to check the structural integrity of the pipeline. One of the guidelines that is using wide spread for investigating the fracture response of steel structures is BS 7910 which is based on Engineering Critical Assessment (ECA) method. In this paper Engineering Critical Assessment (ECA) of offshore pipeline girth welds is done according to BS 7910 through Crackwise software and the influence of several parameters on ECA is presented. It is concluded that Influence of misalignment on axial internal surface flaws is more significant than on axial external flaws. Furthermore it is observed that internal surface flaws have always larger values for tolerable defect heights than external surface cracks. In addition, circumferential surface flaws have evermore larger amount of acceptance level in defect heights than axial flaws.http://ijcoe.org/article-1-30-en.htmlengineering critical assessment (eca)offshore pipelinesurface cracksgirth weld misalignmentbs 7910 |
| spellingShingle | Seyed Mohammad Hossein Sharifi Mehran Kaveh Hamed Saeidi Googarchin Engineering Critical Assessment of Offshore Pipelines under Operational Loading Phase According to BS 7910 Guideline International Journal of Coastal and Offshore Engineering engineering critical assessment (eca) offshore pipeline surface cracks girth weld misalignment bs 7910 |
| title | Engineering Critical Assessment of Offshore Pipelines under Operational Loading Phase According to BS 7910 Guideline |
| title_full | Engineering Critical Assessment of Offshore Pipelines under Operational Loading Phase According to BS 7910 Guideline |
| title_fullStr | Engineering Critical Assessment of Offshore Pipelines under Operational Loading Phase According to BS 7910 Guideline |
| title_full_unstemmed | Engineering Critical Assessment of Offshore Pipelines under Operational Loading Phase According to BS 7910 Guideline |
| title_short | Engineering Critical Assessment of Offshore Pipelines under Operational Loading Phase According to BS 7910 Guideline |
| title_sort | engineering critical assessment of offshore pipelines under operational loading phase according to bs 7910 guideline |
| topic | engineering critical assessment (eca) offshore pipeline surface cracks girth weld misalignment bs 7910 |
| url | http://ijcoe.org/article-1-30-en.html |
| work_keys_str_mv | AT seyedmohammadhosseinsharifi engineeringcriticalassessmentofoffshorepipelinesunderoperationalloadingphaseaccordingtobs7910guideline AT mehrankaveh engineeringcriticalassessmentofoffshorepipelinesunderoperationalloadingphaseaccordingtobs7910guideline AT hamedsaeidigoogarchin engineeringcriticalassessmentofoffshorepipelinesunderoperationalloadingphaseaccordingtobs7910guideline |