非对称系泊系统布置下Spar平台运动响应分析（英文）

Hydrodynamic Analysis of a Spar Platform under Asymmetrical Mooring System

对大陆坡上的油气资源开采时,浮式平台所处位置处的海底地形可能出现较大坡度,需布置非对称的系泊系统。文章基于一个Spar平台,针对平台两侧系泊系统锚固点所处地形变化而造成水深不同的情况,优化设计一套非对称的系泊系统,且非对称系泊系统的水平刚度较大。在时域范围内建立耦合数值模型对平台的运动响应和系泊系统动力特性进行研究和分析。文中研究表明,采用非对称系泊系统的平台在纵荡、横荡和纵摇方向上的响应幅值和系泊张力均符合工程要求,且能改善平台运动性能。

When mining the oil and gas resources on the continental slope, the seabed topography at the location where the floating platform is located may have a relatively steep gradient, so an asymmetrical mooring system may be deployed. Based on a Spar platform, an asymmetrical mooring system is optimized to match the different anchor depth, and the horizontal stiffness of asymmetrical mooring system is relatively high. The motion response of platform and the dynamic characteristics of mooring system are compared through the coupled numerical simulation model in time domain. The results show that the response amplitude and mooring tension of platform with asymmetrical mooring system in the surge, sway and pitch are all in line with the engineering requirements, and it could improve the global motion performance of Spar platform.