›› 2016, Vol. 37 ›› Issue (5): 1-1.doi: 10.7657/XJPG20160519

• 论文 •    

改进的Morlet小波变换在储集层预测中的应用

齐宇,梁建设,柳迎红,喻梓靓,陈思路   

  1. (中海油研究总院,北京 100028)
  • 出版日期:2019-01-01 发布日期:1905-07-16

Application of Modified Morlet Wavelet Transform in Reservoir Prediction

QI Yu, LIANG Jianshe, LIU Yinghong, YU Ziliang, CHEN Silu   

  1. (CNOOC Research Institute, Beijing 100028, China)
  • Online:2019-01-01 Published:1905-07-16

摘要: Morlet小波是时频域内具有最好分辨率的小波。介绍了小波变换的方法,选取Morlet小波为母小波,引入一个控制小波函数带宽的参数c2加以改进,并研究了参数c2的变化对小波函数的影响,将改进的Morlet小波变换应用于地震物理模型发现,分频处理后的地震数据刻画目标体更为清晰,实例应用结果表明,改进的Morlet小波变换分频处理方法可以有效地提高储集层预测精度。

Abstract: Morlet wavelet possesses the highest resolution in time frequency domain. This article presents a wavelet transform method, selects Morlet wavelet as mother wavelet, introduces a parameter c2 controlling the bandwidth of wavelet functions which will be modified later, and studies the influences of c2 variation on wavelet functions. After the application of modified Morlet wavelet transform in seismic physical modeling, the seismic data after frequency division processing can provide more clear description of objectives. The case study shows that the modified frequency division processing method of Morelet wavelet transform can effectively improve the accuracy of reservoir prediction

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