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公开(公告)号：EP3417142A1
公开(公告)日：2018-12-26
申请号：EP17702717.4
申请日：2017-01-17
发明人： WANG, Howard H. , KAN, Wan-Cai
摘要： A rigid riser system including a rigid riser and one or more fatigue performance enhancers. The rigid riser includes a plurality of rigid metal sections welded together to form a plurality of girth weld joints. The one or more fatigue performance enhancers are positioned over one or more of the plurality of girth weld joints of the rigid riser to enhance the fatigue resistance and/or fatigue life. The body of the fatigue performance enhancer may include a central region and two end regions with the central region having a greater average radial cross-sectional thickness than each of the end regions. Methods of enhancing fatigue performance of the rigid riser and fatigue performance enhancers are also disclosed.
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公开(公告)号：EP3417142B1
公开(公告)日：2020-02-26
申请号：EP17702717.4
申请日：2017-01-17
发明人： WANG, Howard H. , KAN, Wan-Cai
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公开(公告)号：EP3702577A1
公开(公告)日：2020-09-02
申请号：EP20158447.1
申请日：2017-01-17
发明人： WANG, Howard H. , KAN, Wan-Cai
摘要： A rigid riser system including a rigid riser and one or more fatigue performance enhancers. The rigid riser includes a plurality of rigid metal sections welded together to form a plurality of girth weld joints. The one or more fatigue performance enhancers are positioned over one or more of the plurality of girth weld joints of the rigid riser to enhance the fatigue resistance and/or fatigue life. The body of the fatigue performance enhancer may include a central region and two end regions with the central region having a greater average radial cross-sectional thickness than each of the end regions. Methods of enhancing fatigue performance of the rigid riser and fatigue performance enhancers are also disclosed.
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