侧扫声纳和浅地层剖面仪在海管断裂点定位中的应用

结合侧扫声纳和浅地层剖面仪能够探测出海底管道附近异常,路由区浅层地质灾害以及海底管道位置等特点,通过实例探讨了侧扫声纳和浅地层剖面仪在海底管道断裂位置定位中的应用。船锚、浅层气等外力作用,导致海底油气管道断裂,使用侧扫声纳和浅地层剖面仪探测的方法,综合分析海水中的气体屏蔽现象、海底面的地貌异常特征、海底管道的平面位置及埋深变化、地层剖面的反射空白等异常特征,快速准确定位海底油气管道断裂位置。

Application of Side-scan Sonar and Sub-bottom Profiler in Locating Fracture Positions of Submarine Pipelines

Side-scan sonar and sub-bottom profiler can detect the abnormity near the pipelines,shallow geological disasters and the location of pipelines.This paper discusses the application of side-scan sonar and sub-bottom profiler in locating the fractured positions of submarine pipelines through two examples.Submarine pipelines can be fractured under the action of external force such as anchors and shallow gas.We can locate the fractured positions rapidly and exactly through the shield gas phenomenon in the seawater,abnormal geomorphology on the seafloor,location and depth changes of the pipeline,and blank reflection in the stratigraphic section,by using the side-scan sonar and sub-bottom profiler.