浅海新型FPSO-IQFP多点系泊系统设计研究  

Design of multi-point mooring systems for new concept FPSO-IQFP in shallow waters

作　　者：王天英[1] 

机构地区：[1]中石化石油工程设计有限公司,山东东营257026

出　　处：《海洋工程》2014年第3期89-95,共7页The Ocean Engineering

基　　金：中石化石油工程公司2013科研课题"浅海多点系泊小型FPSO关键技术研究";山东省博士后创新项目专项资金资助项目(201103020)

摘　　要：海上油气生产要求FPSO具有低幅运动的特性,因此系泊系统性能的优劣直接影响生产作业的效率和安全。针对新概念FPSO-IQFP(圆角倒棱台形FPSO)的浮体特点和边际油田经济性开发的需要,设计一套经济有效的多点系泊系统。首先,将钢制悬链线系泊系统和聚酯纤维张紧式系泊系统作为备选方案,根据定常力计算结果并参照工程经验,给出两种系泊系统的初始设计方案,并进行二者的静特性分析,探讨系泊参数对系泊系统受力和位移的影响规律;在此基础上,结合时域计算结果,确定系泊系统的优化设计方案;最后,给出系泊系统的回复力和浮体位移之间的关系曲线,并在静力范围内比较两种系泊系统的优劣性。静力分析结果初步验证,较之悬链线系泊系统,张紧式系泊系统用于浅水作业的IQFP上更具优越性。Mooring system performance directly affects efficiency and safety of operation process of FPSOs because offshore oil and gas production requires FPSOs to have low-amplitude motion characteristics. In order to design an effective and economical multi-point mooring system for the new concept FPSO IQFP （fillet inverted quadrangular frustum pyramid shaped FPSO, presented by the lead author） , the effects of the mooring parameters on the performance of the catenary mooring system and the taut one were investigated according to the initial design plans given in advance according to the steady environment forces and practical experiences. Then, the optimal mooring systems were developed on the basis of the static analysis results combined with the coupled calculations in time domain. Finally, the merits and demerits of the two mooring schemes were compared based on the mooring and static characteristic parameters as well as the curves of restoring force against horizontal displacement of the catenary and taut mooring systems respectively. The results verify that the taut mooring system is preferable to the catenary one for IQFP deployed in shallow waters.

关 键 词：FPSO 张紧式系泊系统 悬链线系泊系统 静力特性 浅水 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]