Influence of Top Seal Damage on Contact Seal in Ram Blowout Preventer
Top seal failure of ram blowout preventer (BOP) is one of the main factors leading to well control risk. The constitutive model and parameters of nitrile butadiene rubber (NBR) were optimized by compression and tensile tests, and the failure analysis model of the contact seal of the ram BOP top seal...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/9/3413 |
| _version_ | 1797602242913632256 |
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| author | Shiqiang Wang Laibin Zhang Jiamin Yu Jianchun Fan |
| author_facet | Shiqiang Wang Laibin Zhang Jiamin Yu Jianchun Fan |
| author_sort | Shiqiang Wang |
| collection | DOAJ |
| description | Top seal failure of ram blowout preventer (BOP) is one of the main factors leading to well control risk. The constitutive model and parameters of nitrile butadiene rubber (NBR) were optimized by compression and tensile tests, and the failure analysis model of the contact seal of the ram BOP top seal was built. The nonlinear contact mechanical behavior of the connection part of the BOP top seal was analyzed by the finite element method. Then, the influence of corrosion and wear defects at the top seal position of the 2FZ35-70 BOP under rated working pressure on the contact seal were studied, and the results showed that the overall contact pressure distribution of the top seal corrosion defects was uniform, the local contact pressure of the corrosion pit edge increased, and the top contact pressure decreased. The overall contact pressure of the wear defect of the top seal decreased linearly, the contact pressure at the maximum depth of the wear defect was the smallest, and the contact pressure gradually decreased to both sides. Ultimately, to guarantee the safety and reliability of the ram BOP, it is suggested that the acceptable depths of the seal corrosion pit and the wear at the top of the ram BOP are 4.0 mm and 0.2 mm, respectively, thus the reliability evaluation problem of the quantitative seal of the ram BOP top seal is solved. |
| first_indexed | 2024-03-11T04:14:13Z |
| format | Article |
| id | doaj.art-784bc2a6a0494835b9670e36ac10411c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T04:14:13Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-784bc2a6a0494835b9670e36ac10411c2023-11-17T23:15:46ZengMDPI AGMaterials1996-19442023-04-01169341310.3390/ma16093413Influence of Top Seal Damage on Contact Seal in Ram Blowout PreventerShiqiang Wang0Laibin Zhang1Jiamin Yu2Jianchun Fan3College of Safety and Ocean Engineering, China University of Petroleum (Beijing), Beijing 100100, ChinaCollege of Safety and Ocean Engineering, China University of Petroleum (Beijing), Beijing 100100, ChinaResearch Institute of Safety, Environmental Protection and Quality Supervision and Inspection, Chuanqing Drilling Engineering Co., Ltd., Guanghan 618300, ChinaCollege of Safety and Ocean Engineering, China University of Petroleum (Beijing), Beijing 100100, ChinaTop seal failure of ram blowout preventer (BOP) is one of the main factors leading to well control risk. The constitutive model and parameters of nitrile butadiene rubber (NBR) were optimized by compression and tensile tests, and the failure analysis model of the contact seal of the ram BOP top seal was built. The nonlinear contact mechanical behavior of the connection part of the BOP top seal was analyzed by the finite element method. Then, the influence of corrosion and wear defects at the top seal position of the 2FZ35-70 BOP under rated working pressure on the contact seal were studied, and the results showed that the overall contact pressure distribution of the top seal corrosion defects was uniform, the local contact pressure of the corrosion pit edge increased, and the top contact pressure decreased. The overall contact pressure of the wear defect of the top seal decreased linearly, the contact pressure at the maximum depth of the wear defect was the smallest, and the contact pressure gradually decreased to both sides. Ultimately, to guarantee the safety and reliability of the ram BOP, it is suggested that the acceptable depths of the seal corrosion pit and the wear at the top of the ram BOP are 4.0 mm and 0.2 mm, respectively, thus the reliability evaluation problem of the quantitative seal of the ram BOP top seal is solved.https://www.mdpi.com/1996-1944/16/9/3413ram blowout preventertop sealcorrosion defectwear defectsealing performance |
| spellingShingle | Shiqiang Wang Laibin Zhang Jiamin Yu Jianchun Fan Influence of Top Seal Damage on Contact Seal in Ram Blowout Preventer Materials ram blowout preventer top seal corrosion defect wear defect sealing performance |
| title | Influence of Top Seal Damage on Contact Seal in Ram Blowout Preventer |
| title_full | Influence of Top Seal Damage on Contact Seal in Ram Blowout Preventer |
| title_fullStr | Influence of Top Seal Damage on Contact Seal in Ram Blowout Preventer |
| title_full_unstemmed | Influence of Top Seal Damage on Contact Seal in Ram Blowout Preventer |
| title_short | Influence of Top Seal Damage on Contact Seal in Ram Blowout Preventer |
| title_sort | influence of top seal damage on contact seal in ram blowout preventer |
| topic | ram blowout preventer top seal corrosion defect wear defect sealing performance |
| url | https://www.mdpi.com/1996-1944/16/9/3413 |
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