Abstract
For seismic attenuation estimation, a key point is to improve the estimation resolution. It is a challenge to estimate attenuation as accurately as possible within a time-window as short as possible. Margrave (1998) proposed a nonstationary-convolution model for a time varying seismic record, which might be an effective way for attenuation estimation. In this paper, a method for seismic attenuation estimation is proposed. First operators of time frequency filtering are applied to a deconvolved seismic trace to obtain a reflectivity after attenuation. Then the attenuation estimation based on the reflectivity is performed. Completely different from the other methods, this method can obtain an attenuation estimation within a short time-window. This window can be shorter than the length of the time-window than the wavelength of the wavelet.
| Original language | English |
|---|---|
| Pages (from-to) | 931-936 |
| Number of pages | 6 |
| Journal | Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting |
| Volume | 47 |
| Issue number | 6 |
| State | Published - Dec 2012 |
Keywords
- Nonstationary-convolution model
- Seismic attenuation
- Time-frequency filtering