复杂地形下深水海底管道三维路由设计

Three-Dimensional Routing Design of Deepwater Subsea Flowline on Complex Seabed

针对南海某深水气田复杂的海底地形情况,进行了详细的三维海床建模,并结合悬跨分析计算结果,对海底管道进行了路由论证和优化。调整后的路由方案已尽最大可能避开了不利地形和不良地质,满足设计要求,无需进行大规模的海床施工处理,节省了深水工程投资费用。

Based on the complex seabed topography of the deepwater gas field in the South China Sea,a detailed three-dimensional seabed modeling was carried out,and the results of the span analysis were combined to demonstrate and optimize the subsea flowline routing.The adjusted flowline routing has avoided unfavorable seabed topography and geology as much as possible,and meet the design requirements.Therefore,large-scale seabed pretreatment is not required,which saves the investment cost of deepwater project.