南海挑战号FPS系泊系统延寿疲劳性能评估  

Fatigue Evaluation of Mooring System Life Extension for NanHai TiaoZhan Floating Production System in the South China Sea

作　　者：申辉 朱为全 王火平 王德洋 SHEN Hui;ZHU Weiquan;WANG Huoping;WANG Deyang(COTEC Offshore Engineering Services,Beijing 102209,China;Shenzhen Branch of CNOOC China,Ltd.,Shenzhen 518054,China)

机构地区：[1]北京高泰深海技术有限公司,北京102209 [2]中海石油(中国)有限公司深圳分公司,深圳518054

出　　处：《中国造船》2019年第4期91-99,共9页Shipbuilding of China

摘　　要：南海挑战号FPS系泊系统面临第二次寿命延长,而系泊系统的剩余疲劳寿命是制约其延长寿命的重要因素。通过参考最新的行业推荐做法和船级社规范,对南海挑战号的系泊系统进行了疲劳性能评估,包括锚腿累积疲劳损伤和剩余疲劳寿命。分析结果表明,所有锚腿的剩余疲劳寿命能够仍然满足延寿评估的要求,但是其中两条锚腿中的部分构件剩余的疲劳寿命较小。针对这一情况并结合强度评估结果,建议更换两条锚腿中剩余疲劳寿命较小的构件,同时加强对系泊系统的检测。Mooring system of the Nanhai Tiaozhan floating production system is facing the second life extension,and residual fatigue life of the mooring system is an important factor limiting its life extension.According to the latest recommended practices in the industry and rules of class society,fatigue performance of the mooring system is evaluated.It is shown that the residual fatigue life of all mooring lines can meet the life extension requirement,but the fatigue life of the mooring chain components in#9 and#10 mooring lines is relatively small.For such situation,it is recommended to replace chain components with less fatigue life,and strengthen inspection of the mooring system.

关 键 词：半潜平台 浮式生产系统 疲劳分析 延长寿命 

分 类 号：U661[交通运输工程—船舶及航道工程]