柔性复合海底管道复位和回接方法
Resetting and Reconnection Methods for Flexible Composite Submarine Pipelines
楚金勇 1于银海 2兰学杰 2史殿龙 2郭建国1
作者信息
- 1. 中海油深圳海洋工程技术服务有限公司
- 2. 海洋石油工程股份有限公司
- 折叠
摘要
以渤海某海上油田新铺柔性软管工程为例,针对软管起始端和终止端受海上已有结构影响,无法一次铺设到设计路由,需要通过二次搬移的方式使偏离设计路由的软管复位.设计了以浮袋为主要辅助手段的柔性软管路由搬移复位方案,从理论上分析了可行性.根据目前常用的海管法兰对接方法,结合平台上部结构对回接工作的影响,分别提出了浮袋、倒链和吊梁辅助的柔性软管法兰连接的优化方案.工程实践证明,依托浮袋辅助软管路由大范围搬移能够保证软管结构的安全,且操作方法简单,提出的2套柔性软管法兰连接的优化方案降低了施工难度和风险.
Abstract
Taking the newly laid flexible hose project in an offshore oil field in Bohai as an example,it was necessary to reset the deviated hose from the design route through secondary relocation,as the starting and ending ends of the hose could not be laid to the design route in one go due to the influence of the existing offshore structure.A flexible hose routing and relocation reset scheme with floating bags as the main auxiliary means had been designed,and the feasibility had been theoretically analyzed.Based on the commonly used flange docking methods for subsea pipelines and considering the impact of the upper structure of the platform on the reconnection work,optimization schemes for flexible hose flange connections assisted by floating bags,chain blockers,and lifting beams were proposed.Engineering practice had proven that relying on floating bags to assist in the routing and large-scale movement of flexible hoses could ensure the safety of the hose structure,and the operation method was simple.The proposed optimization plan for two sets of flexible hose flange connections reduced construction difficulty and risk.
关键词
柔性软管/路由/浮袋Key words
Flexible hose/Road relocation/Floating bag引用本文复制引用
出版年
2024
NETL
NSTL
万方数据