详情

当前位置：首页> 交通会议论文数据库 >详情

原文传递 Neglected features of dynamic response of long drilling risers in re-entry under horizontal oscillation of mother vessels

题名：	Neglected features of dynamic response of long drilling risers in re-entry under horizontal oscillation of mother vessels
正文语种：	中文
作者：	XU Xuesong CHEN Wei DAI Siyu
作者单位：	Key Laboratory of Ocean Engineering, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiaotong University, Shanghai China 200240
关键词：	marine risers riser dynamics riser reentry movement optimization ant colony optimization
摘要：	In re-entry, the drilling riser is set to connect with the seabed wellhead.Owing to the surface wave, the Mother Vessel (MV) and the drilling riser will oscillate in the ocean, which can cause the difficulty of the connection between the riser lower end and the seabed wellhead.To predict the riser response to the horizontal MV oscillation, the Flexible Segment Model (FSM) based dynamic calculation method is employed to make the numerical calculation.For the response of long drilling risers to the MV oscillation at different periods and amplitudes, there are 2 features easy to be neglected: the maximum response amplitude of riser lower ends and minimum oscillation location on the risers.Here, a 1500m drilling riser is taken as a typical long drilling riser.Its dynamic response to the horizontal MV oscillation is analyzed, the maximum response amplitude of riser lower end as the variation of MV oscillating period and amplitude is shown, and the Minimum Oscillation Point (MOP) on the riser is located.
会议日期：	201709
会议举办地点：	浙江舟山
会议名称：	第十八届中国海洋(岸)工程学术讨论会
出版日期：	0900-01-20
母体文献：	第十八届中国海洋(岸)工程学术讨论会论文集