Abstract：The study of thin inter-bed seismic reflections and wavefield characteristics is the basis for the thin bed reservoir characterization and hydrocarbon prediction.First based on academic analysis of thin inter-bed seismic reflections,we study four types of amplitude versus offset (AVO) characteristics.Then we establish different thin inter-bed models with different thickness,velocity,and density.Finally we use the reflectivity method for the wavefield forward modeling of these models.The main factors affecting thin inter-bed vertical reflection characteristics and the influence of different thin inter-beds on AVO response characteristics are investigated.The paper summarizes the influences of sand-mud ratio,inter-bed structures,and other factors on AVO characteristics,which may be helpful for the thin inter-bed interpretation.
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