Frequency-dependent reflections in elastic diffusive-viscous media
作者: Haixia ZhaoJinghuai GaoJigen Peng
作者单位: 1School of Mathematics and Statistics, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, People’s Republic of China
2National Engineering Laboratory for Offshore Oil Exploration, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, People’s Republic of China
刊名: Journal of Geophysics and Engineering, 2018, Vol.15 (5)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1742-2140/aac038
原始语种摘要: Amplitude variation with offset/angle of incidence (AVO/AVA) analysis is essential for hydrocarbon detection and reservoir characterization. Frequency-dependent AVO analysis plays an important role in seismic interpretation especially for the low-frequency seismic anomalies related to hydrocarbon reservoir. The diffusive-viscous model is used to explain these anomalies, but it does not consider the shear effects of rocks. In this work, we firstly extend the diffusive-viscous model to elastic case based on the mechanisms in a macroscopic porous medium. The elastic diffusive-viscous model describes attenuation of compressional and shear waves in a fluid-saturated medium and it reduces to the classic elastic wave equation in a special case. Then, we investigate the properties of...
全文获取路径: IOP  (合作)
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关键词翻译
关键词翻译
  • diffusive 扩散的
  • elastic 有弹性的
  • viscous 粘滞的
  • reflection 反射
  • hydrocarbon 碳氢化合物
  • sandstone 砂岩
  • reservoir 贮水池
  • media 中脉
  • shale 页岩
  • saturated 饱和