自升式钻井平台抗冰特性试验研究  

Experimental study on ice resistance properties of jack-up platform

作　　者：樊敦秋 刘学涛 张霖 FAN Dunqiu;LIU Xuetao;ZHANG Lin(Oil Production Services Co.,CNOOC Energy Technology&Services Limited,Tianjin 300452,China)

机构地区：[1]中海油能源发展采油服务公司,天津300452

出　　处：《海洋湖沼通报》2023年第1期38-44,共7页Transactions of Oceanology and Limnology

摘　　要：自升式钻井平台在设计时通常不考虑冰荷载的作用,要实现冰区作业,首先需要对该类平台的抗冰能力进行准确评估。本文通过开展冰池试验,对自升式钻井平台冰载荷作用机理、结构冰激特性以及抗冰方法等进行研究。海洋结构受到的冰荷载大小以及结构响应值与冰厚密切相关,冰激振动机理与冰厚无关,探究不同冰速和冰厚下冰荷载及振动响应的时程曲线,可发现低冰速下结构展现出的准静态响应特征以及高冰速下的随机响应特征。冰激振动的发生是结构固有特性、冰速、冰厚、冰材料参数等因素共同影响的结果,其作用机理尤为复杂,本研究侧重于桁架式自升式平台冰区作业中结构冰激振动特性研究。The jack-up platform is generally designed without considering the effect of ice load.To realize the operation in ice area,it is necessary to investigate the anti-ice ability of such platform.This paper studies the ice load mechanism,ice-induced vibration and anti-ice method of jacket platform.The ice load acting on structure and vibration response are gradually increased with the ice thickness.The vibration mechanism of different ice thickness has not changed,by comparing the time series response with different ice thickness.It is found that the vibration response will show a quasi-static response at low ice speed and a random response at high ice speed.The occurrence of ice-induced vibration is the result of the inherent structural characteristics,ice speed,ice thickness,ice material parameters and other factors,and the mechanism of action is particularly complex.This study focuses on the research of ice-induced vibration characteristics of jacket platform in ice area.

关 键 词：自升式平台 冰池试验 冰激振动 冰荷载 

分 类 号：TE973.92[石油与天然气工程—石油机械设备]