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基于同步挤压变换的水合物储层地震信号时频分析

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张建中, 刘晗, 黄忠来, 赵铁虎, 孙运宝. 基于同步挤压变换的水合物储层地震信号时频分析[J]. 海洋地质前沿, 2015, 31(6): 23-29. doi: 10.16028/j.1009-2722.2015.06004
引用本文: 张建中, 刘晗, 黄忠来, 赵铁虎, 孙运宝. 基于同步挤压变换的水合物储层地震信号时频分析[J]. 海洋地质前沿, 2015, 31(6): 23-29. doi: 10.16028/j.1009-2722.2015.06004
shu
ZHANG Jianzhong, LIU Han, HUANG Zhonglai, ZHAO Tiehu, SUN Yunbao. A SYNCHROSQUEEZING TRANSFORM BASED TIME-FREQUENCY ANALYSIS ON SEISMIC SIGNALS OF HYDRATE RESERVOIRS[J]. Marine Geology Frontiers, 2015, 31(6): 23-29. doi: 10.16028/j.1009-2722.2015.06004
Citation: ZHANG Jianzhong, LIU Han, HUANG Zhonglai, ZHAO Tiehu, SUN Yunbao. A SYNCHROSQUEEZING TRANSFORM BASED TIME-FREQUENCY ANALYSIS ON SEISMIC SIGNALS OF HYDRATE RESERVOIRS[J]. Marine Geology Frontiers, 2015, 31(6): 23-29. doi: 10.16028/j.1009-2722.2015.06004
shu

基于同步挤压变换的水合物储层地震信号时频分析

  • 1 中国海洋大学海洋地球科学学院, 青岛 266100;

  • 2 海底科学与探测技术教育部重点实验室, 青岛 266100;

  • 3 中国地质调查局青岛海洋地质研究所, 青岛 266071

  • 基金项目:

    国家自然科学基金(41074077,41230318)

    中国地质调查局国家海洋地质专项(GZH201100308)

详细信息
    作者简介: 张建中(1963-),男,教授,博士生导师,主要从事地震、重磁勘探的处理和解释方法等研究工作.E-mail:zhangjz@ouc.edu.cn

  • 中图分类号: TE122;P315

A SYNCHROSQUEEZING TRANSFORM BASED TIME-FREQUENCY ANALYSIS ON SEISMIC SIGNALS OF HYDRATE RESERVOIRS

  • 1 College of Marine Geosciences, Ocean University of China, Qingdao 266100, China;

  • 2 Key Laboratory of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, China;

  • 3 Qingdao Institute of Marine Geology, CGS, Qingdao 266071, China

    摘要
  • 同步挤压变换是一种新的时频分析方法,通过对信号进行小波变换,并重排(挤压)所得到的小波系数谱,得到比小波变换等常用时频变换更高的时频分辨率。使用同步挤压变换对含水合物储集层的合成地震数据以及南海神狐海域的实测地震资料进行了处理,并与小波变换结果进行了对比。结果表明,同步挤压变换对地震数据的处理结果具有更高的时频分辨率,能够反映地震信号频率的精细变化,用于识别和圈定水合物储层。
    The Synchrosqueezing Transform (SST) is a new time-frequency analysis method. SST can obtain the time-frequency (t-f) resolution better than common time-frequency transforms such as wavelet transform and so on, by performing wavelet transform on the signal and reassigning (squeezing) the corresponding coefficient spectrum. In this paper, both continuous wavelet transform (CWT) and SST are applied to process the synthetic seismic data from a model containing hydrate reservoirs and a real seismic data collected from the Shenhu area of the South China Sea. The test results show that SST is able to provide seismic profiles with higher t-f resolution than CWT, which can reflect more detailed change in frequency of seismic signal and help us identify and delineate hydrate reservoirs more precisely.
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出版历程
收稿日期:  2015-03-09

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