气泡羽状流的识别及其与资源环境相关性分析

Identification of bubble plumes and analysis of its correlation with resource environment

存在于海洋中的气泡羽状流既与海底水合物相关,又影响着海洋环境和大气环境,因此,本文针对羽状流的识别及与资源环境的相关性进行了系统的分析和总结.首先简要给出羽状流的产生机理,即大量天然气的海底渗漏.然后总结了羽状流的三种识别手段,即真实直观的摄影成像、成像清晰的声呐系统和探测面积大的地震方法.探讨了羽状流与水合物及冷泉的相关性:水合物赋存区域未必一定会有羽状流,有气体泄漏或羽状流区域未必一定存在水合物;冷泉发育区常见羽状流.最后分析了羽状流对海洋环境和大气环境的影响.以上结论和认识可为羽状流的深入研究奠定基础.

The bubble plume existing in the ocean is related to the submarine hydrate and also affects the marine environment and atmosphere environment. In this paper, we analyzed and summarized the identification of plumes and its correlation with resource environment. At first,the generation mechanism of the plumes is given,which is submarine leakage of large natural gas;then the three identification methods of the plumes are summarized,and that is the real visual imaging,sonar system with imaging clear and the seismic methods with large detection area. The Correlation of the plume with the hydrate and cold seepage is discussed.Hydrate occurrence area may not necessarily produce the plume,and there may not be hydrate where is in gas leakage or plume area.The plume is usually found in the occurrence areas of cold seepage.Finally,the effect of plume on marine environment and atmospheric environment was analyzed. These conclusions laid the foundation for the further study of the plume.