| Development of Hemispherical Elastic Bearing for Steel Catenary Riser Flexible Joint |
| Received:October 27, 2021 Revised:October 27, 2021 |
| DOI：10.12136/j.issn.1000-890X.2022.12.0926 |
| Key Words: hemispherical elastic bearing；flexible joint；steel catenary riser；HNBR；reinforcement plate； forming process |
| Author Name | Affiliation | E-mail | | Hou Jing | CNOOC Research Institute | dees190@163.com | | LI Shilong | CNOOC（China） Limited Hainan Branch | | | MA Meiqin* | SINO Rubber Technology Co. ，Ltd | rste182@163.com | | SUN Jianbang | SINO Rubber Technology Co. ，Ltd | | | LIU Baoquan | SINO Rubber Technology Co. ，Ltd | |
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| Abstract: |
| The development of hemispherical elastic bearing for steel catenary riser flexible joints was of
great significance to the localization of steel catenary riser flexible joints in China，and one study in an oil and
gas field platform in China Sea was introduced in this paper. This study focused on several important aspects
of the bearing：the compound formula design of rubber layer，material selection and forming scheme of the
reinforcement plate，production process，mold design and vulcanization forming process. The results showed
that the hemispherical elastic bearing made of hydrogenated nitrile rubber（HNBR） layer and reinforcement
steel plate had moderate rigidity，stable structure，excellent corrosion resistance and fatigue resistance. |
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