小波分析技术在薄砂岩储集层描述中的应用——以埕岛地区馆上段为例

Application of wavelet analysis to the characterization of thin sandstone reservoirs: an example from the upper member of Guantao Formation in Chengdao area

小波分析技术近几年在地震资料的处理方面得到了较为广泛的应用 ,但在地震资料的解释和油藏描述方面还很少见有应用。通过小波变换基本理论的分析 ,说明了小波变换能够提高地震资料分辨率 ,从而达到识别薄砂岩储集层的目的 ;尝试了小波分析技术应用于薄砂层识别及描述 ,并结合埕岛地区馆陶组上段曲流河薄砂岩储层的描述 ,介绍了其实现过程及取得的效果 。

Wavelet analysis has been widely used in seismic data processing in recent years, whereas its use in seismic data interpretation and reservoir characterization is not common. Based on the theoretical analysis of wavelet transformation, this paper showed that the resolution of seismic data can be improved with wavelet transform, therefore identification of thin sandstone reservoirs is possible. The implementation of identifying thin sandstone reservoirs via wavelet analysis and its effectiveness is illustrated by the characterization of thin meandering channel sandstone reservoirs in the upper member of Guantao Formation in Chengdao area.