圆筒型FPSO运动响应特性与抑制方法  

Motion response characteristics and suppression methods of cylindrical FPSO

作　　者：李达 易丛 付升雷 白雪平 高巍 吕柏呈 LI Da;YI Cong;FU Shenglei;BAI Xueping;GAO Wei;LYU Baicheng(CNOOC Research Institute Ltd.,Beijing 100028,China)

机构地区：[1]中海油研究总院有限责任公司,北京100028

出　　处：《中国海上油气》2025年第1期184-193,共10页China Offshore Oil and Gas

基　　金：中海石油(中国)有限公司深圳分公司开发研究与设计(总体开发方案编制)项目“流花11-1/4-1油气二次开发基本设计(编号:2019BD-09)”部分研究成果。

摘　　要：为论证圆筒型FPSO(浮式生产储卸油装置)在南海油田开发项目中的适应性,对其运动响应特性及抑制方法开展了研究。建立了波浪-圆筒型FPSO-系泊系统的时域耦合数值模型,系统分析了圆筒型FPSO的摇摆及垂荡运动特性。结果表明,与船型FPSO相比,圆筒型FPSO低频摇摆运动响应更加显著,占比接近50%;与船型FPSO摇摆运动由波频主导不同,圆筒型FPSO低频摇摆响应主要来自低频二阶差频波浪载荷。通过模型试验验证了数值分析结果的可靠性,进一步提出通过降低重心及优化垂荡板形式可使圆筒型FPSO摇摆运动下降4%~10%。研究结果为同类圆筒型浮体结构的总体设计提供了参考。To verify the applicability of cylindrical floating production storage and offloading system (FPSO) in the South China Sea oilfields, this paper studies its motion response characteristics and suppression methods. The paper establishes a time-domain fully-coupled model for the wave loads, cylindrical FPSO, and its mooring system and systematically analyzes the rolling and heave motion characteristics of cylindrical FPSO. The results reveal the obvious low-frequency rolling motion response of cylindrical FPSO compared to ship-shaped FPSO, which accounts for around 50%. The low-frequency rolling motion response of cylindrical FPSO mainly comes from low-frequency second-order difference-frequency wave loads, which is different from wave frequency-dominated rolling motion of ship-shaped FPSO. The numerical analysis results are validated through model experiments. On this basis, two methods are proposed to reduce the rolling motion of cylindrical FPSO by 4%-10%, namely lowering the center of gravity and optimizing the heave plate. The research results of this paper can provide reference for the overall design of similar cylindrical floating structures.

关 键 词：圆筒型FPSO 低频运动响应 摇摆运动 抑制方法 垂荡板 模型试验 

分 类 号：U66[交通运输工程—船舶及航道工程] TE54[交通运输工程—船舶与海洋工程]