张玉军.正演模拟在陇东页岩层反射波解释中的应用[J].甘肃地质,2021,(2):43-49
正演模拟在陇东页岩层反射波解释中的应用
Application of Forward Modeling on Interpretation Seismic Reflected Wave of Shale Bed in East Gansu
  
DOI:
中文关键词:  地质模型  页岩层  正演模拟  波组特征  地质解释
英文关键词:seismic geological model  shale  forward modeling  wave group characteristics  geological interpretation
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作者单位
张玉军 甘肃煤田地质局综合普查队甘肃 天水 741002 
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中文摘要:
      基于波动方程理论,以陇东地层结构为基础建立地质模型,针对页岩层这一重点研究对象,采用Tesseral软件进行有限差分法全波场正演技术,模拟计算陇东地区较为发育的反射波组,以便分析研究包括页岩层在内的各个反射波组特征。同时结合人工合成地震记录,并与实际地震时间剖面匹配对比,从而标定各个反射波组的地质属性,最终对页岩层反射波做出准确、合理的地质解释。
英文摘要:
      Based on the wave equation theory, the geological model is established on the basis of the Longdong stratum structure. For the key research object of the shale layer, the Tesseral software is used to perform the full-wave forward modeling technology of the finite difference method to simulate and calculate the more developed reflection wave group in the Longdong area. In order to analyze and study the characteristics of various reflected wave groups including shale layers. At the same time, combined with synthetic seismic records, and matching with the actual seismic time profile matching, so as to calibrate the geological properties of each reflected wave group, and finally make an accurate and reasonable geological interpretation of the shale layer reflected waves.
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