文献类型：期刊文献

中文题名：Numerical Simulation of Bubble Plumes and an Analysis of Their Seismic Attributes

英文题名：Numerical simulation of bubble plumes and an analysis of their seismic attributes

作者：Li, Canping[1];Gou, Limin[2];You, Jiachun[3]

机构：[1]Guangdong Ocean Univ, Lab Ocean Remote Sensing & Informat Technol, Zhanjiang 524088, Peoples R China;[2]China Univ Geosci Beijing, Sch Ocean Sci, Beijing 100083, Peoples R China;[3]China Univ Geosci Beijing, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China

年份：2017

卷号：16

期号：2

起止页码：223

中文期刊名：Journal of Ocean University of China

外文期刊名：JOURNAL OF OCEAN UNIVERSITY OF CHINA

收录：SCI-EXPANDED(收录号：WOS:000396071600006)、CSTPCD、、Scopus(收录号：2-s2.0-85014626708)、WOS、CSCD2017_2018、CSCD

基金：This study was financially supported by the National Natural Science Foundation of China (No. 41306050), the Science and Technology Project of Guangdong Province of China (No. 2014A010103030), the Natural Science Foundation of Guangdong Province under contract (No. 2015A030313617) and the National Marine Important Charity Special Foundation of China (No. 201305019).

语种：英文

中文关键词：plume;seismic;attributes;natural;gas;hydrate;scattered;wave;numerical;simulation

外文关键词：plume; seismic attributes; natural gas hydrate; scattered wave; numerical simulation

中文摘要：To study the bubble plume's seismic response characteristics,the model of a plume water body has been built in this article using the bubble-contained medium acoustic velocity model and the stochastic medium theory based on an analysis of both the acoustic characteristics of a bubble-contained water body and the actual features of a plume.The finite difference method is used for forward modelling,and the single-shot seismic record exhibits the characteristics of a scattered wave field generated by a plume.A meaningful conclusion is obtained by extracting seismic attributes from the pre-stack shot gather record of a plume.The values of the amplitude-related seismic attributes increase greatly as the bubble content goes up,and changes in bubble radius will not cause seismic attributes to change,which is primarily observed because the bubble content has a strong impact on the plume's acoustic velocity,while the bubble radius has a weak impact on the acoustic velocity.The above conclusion provides a theoretical reference for identifying hydrate plumes using seismic methods and contributes to further study on hydrate decomposition and migration,as well as on distribution of the methane bubble in seawater.

外文摘要：To study the bubble plume's seismic response characteristics, the model of a plume water body has been built in this article using the bubble-contained medium acoustic velocity model and the stochastic medium theory based on an analysis of both the acoustic characteristics of a bubble-contained water body and the actual features of a plume. The finite difference method is used for forward modelling, and the single-shot seismic record exhibits the characteristics of a scattered wave field generated by a plume. A meaningful conclusion is obtained by extracting seismic attributes from the pre-stack shot gather record of a plume. The values of the amplitude-related seismic attributes increase greatly as the bubble content goes up, and changes in bubble radius will not cause seismic attributes to change, which is primarily observed because the bubble content has a strong impact on the plume's acoustic velocity, while the bubble radius has a weak impact on the acoustic velocity. The above conclusion provides a theoretical reference for identifying hydrate plumes using seismic methods and contributes to further study on hydrate decomposition and migration, as well as on distribution of the methane bubble in seawater.