摘要
针对现行水下钻井系统的技术、经济及安全局限性,提出一种新原理深海人工海床钻井系统。建立深海人工海床钻井系统的全耦合时域动力学分析方法,开展深海人工海床钻井系统的时域耦合动力特性研究,分析深海环境中人工海床系统的运动稳性、钻井隔水管、回接套管及系泊系统的动态极值响应特性,以及钻井隔水管、回接套管及系泊系统的强度性能。研究结果发现:深海人工海床系统的六自由度运动幅值较小,运动稳性良好;钻井隔水管的弱点位于其与海面接触部位,回接套管的弱点位于顶部应力节与顶部回接套管的连接处,系泊系统的弱点位于其顶部。新原理深海人工海床钻井系统可为我国深海及超深海油气的高效自主钻采提供一种全新的解决方案。
An innovative deepwater artificial seabed(DAS) drilling system was proposed to improve the technical,economic and safety limitations of existing subsea drilling systems.With a fully coupled dynamic analysis method of the DAS drilling system established,the coupled dynamic characteristics were investigated.Specifically,this study focuses on the movement stability of the artificial seabed,and on the extreme dynamic response behaviors of the drilling riser,tieback casing and mooring system.Furthermore,the strength of the drilling riser,tieback casing and mooring system was validated based on relevant guidelines.The research results confirm that the artificial seabed system features excellent stability in that it presents moderate six-degree-of-freedom movements,and that the weak point of the drilling riser is located at the part where it contacts the sea surface,the weak point of the tieback casing at the connection between the top stress joint and the top tieback casing,and the weak point of the mooring system at its top.The innovative DAS drilling system has the capacity to provide a radical drilling and production solution in deep and ultra-deep waters with high efficiency and China's independent intellectual property right.
作者
甄兴伟
郭伟
段秋阳
黄一
ZHEN Xing-wei;GUO Wei;DUAN Qiu-yang;HUANG Yi(Faculty of Vehicle Engineering and Mechanics,Dalian University of Technology,Dalian 116024,China;China Ship Scientific Research Center,Wuxi 214082,China;Taihu Laboratory of Deepsea Technological Science,Wuxi 214082,China)
出处
《船舶力学》
EI
CSCD
北大核心
2023年第5期707-718,共12页
Journal of Ship Mechanics
基金
国家自然科学基金项目(52171249)
中央高校基本科研业务费资助项目(DUT22LK26)。
关键词
人工海床
钻井
耦合动力
深水
artificial seabed
drilling
coupled dynamics
deepwater
