摘要：As a seismic wavelet is band-limited, the resolution of seismic data is also limited. Extending the bandwidth of a seismic signal is an important way to improve the resolution of seismic data. In this abstract, we extend the bandwidth of seismic data via a harmonic prediction scheme. After decomposing the seismic signal to different frequencies by continuous complex wavelet transform, we can define the basic frequency and the fundamental frequency band width, and predict the harmonics from the available bandwidth. The resolution of the seismic data will be enhanced after adding the harmonics into the data. This method can also extend the low frequencies by adding subharmonics. We use the harmonic prediction method to process a real seismic dataset from Shengli oilfield in East China. By adding harmonics and sub-harmonics to the seismic data, we extend the low frequencies and high frequencies effectively. The resolution of the seismic data is enhanced without decreasing the signal-to-noise ratio.
© 2019 SEG

卷、期、页：p4092-4096

发表日期：2020-01-01

收录情况：EI（工程索引）,国际学术会议论文集

发表期刊名称：SEG International Exposition and Annual Meeting 2019

参与作者：Liu, Libin

通讯作者：魏庆

第一作者：陈双全,李向阳

论文类型：会议论文

论文概要：魏庆,陈双全,Liu, Libin,李向阳，Extending high and low frequencies by predicting harmonics and sub-harmonics，SEG International Exposition and Annual Meeting 2019，2020，p4092-4096

论文题目：Extending high and low frequencies by predicting harmonics and sub-harmonics