侧扫声纳和浅地层剖面仪在海管断裂点定位中的应用  

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

作　　者：侯志民 施健 胡斌 

机构地区：[1]中石化海洋石油工程有限公司,上海201208 [2]上海海洋石油局第一海洋地质调查大队,上海201208

出　　处：《海洋测绘》2017年第1期79-82,共4页Hydrographic Surveying and Charting

基　　金：中石化石油工程技术服务有限公司科研项目(SG14-20K)

摘　　要：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。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 pipel ines through two examples.Submarine pipel ines 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 pipeli ne,and blank reflection in the stratigraphic section,by using the side-scan sonar and sub-bottom profiler.

关 键 词：侧扫声纳 浅地层剖面仪 海底管道 断裂 异常特征 定位 

分 类 号：P234[天文地球—摄影测量与遥感]