DN1000大口径水平弯在海底管道中的应用  

Application of DN1000 Large-diameter Horizontal Bending in Submarine Pipelines

作　　者：贺云根 张先锋[2] 杨仲[3] 陈祖强 黄峰 江北 HE Yungen;ZHANG Xianfeng;YANG Zhong;CHEN Zuqiang;HUANG Feng;JIANG Bei(Zhejiang Electric Power Construction Co.,LTD.;Sinopec Petroleum Engineering Design Co.,LTD.;Tianjin Dagang Oilfield Group Engineering Construction Co.,LTD.;Zhejiang Zheneng Wenzhou Liquefied Natural Gas Co.,LTD)

机构地区：[1]浙江省电力建设有限公司 [2]中石化石油工程设计有限公司 [3]天津大港油田集团工程建设有限责任公司 [4]浙江浙能温州液化天然气有限公司

出　　处：《管道技术与设备》2024年第5期26-32,共7页Pipeline Technique and Equipment

摘　　要：某大口径天然气海底管道工程受外部条件限制,必须设置水平弯来完成管道路由的转向。在缺乏成功案例供参考的情况下,文中结合工程特征和天然气管道/水平弯特性,同时借助MOSES等软件,对水平弯的安装过程进行了模拟,作了起吊/下放过程、浮吊船运动影响、安装疲劳等计算分析,并通过优化浮吊船起吊参数和水平弯两侧海底管道配重厚度等方法,顺利完成DN1000厚壁大口径、高配重、高难度海上水平弯的应用,对后续同类工程具有一定的借鉴意义。A certain large-diameter natural gas subsea pipeline project is limited by external conditions,and horizontal bends must be set up to complete the pipeline routing turning.In the absence of successful case studies for reference,this article combined engineering characteristics and natural gas pipeline/horizontal bending characteristics,and used MOSES and other software to simulate the installation process of horizontal bending.The lifting/lowering process,the impact of floating crane ship movement,installation fatigue,and other calculations were analyzed.By optimizing the lifting parameters of floating crane ship and the thickness of submarine pipeline weight on both sides of the horizontal bending,the application of DN1000 thick wall large-diameter,high weight,and high difficulty offshore horizontal bending is successfully completed,which has certain refe-rence significance for similar projects in the future.

关 键 词：海底管道 大口径 水平弯 浮吊 疲劳分析 有限元分析 

分 类 号：TE832[石油与天然气工程—油气储运工程]