基于仿生防护技术的海底管线悬空治理研究

A Research of Bionic Technology on the Control of Suspending Seabed Pipeline

针对海底管线悬空对海洋油气田安全生产的严重威胁及其对海洋环境构成的重大隐患,文章以海底管线周围的局部冲刷及其冲刷防护与控制技术为研究对象,从海底管线冲刷机理入手,分析了管线一次悬空和二次悬空的原因,从模型实验和工程实践两方面开展仿生防护技术治理海底管线悬空研究,利用高分子材料仿生草叶片的柔性黏滞阻尼作用,减缓流速,降低水流的携沙能力,最终达到固沙、填沙、保护管线的目的。

The suspending seabed pipeline has high risk to the marine oil 8- gas production safety and the marine environment.The paper intended to study the protection and control methodology of local scour.Based on the mechanism of scour,the cause of the primary and secondary suspending of pipeline had been analyzed.The model experiments and practical aspects were carried on to discuss the bionic technology about the suspending seabed pipeline.It indicated that the flexibility of the bionic leaf made by high polymer materials had a damping effect on slowing the flow rate,reducing the ability to carry sediment flow.Ultimately the purpose of fixing with sand to protect the pipeline had been achieved.