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The attenuated Ricker wavelet basis for seismic trace decomposition and attenuation analysis
- Source: Geophysical Prospecting, Volume 68, Issue 2, Jan 2020, p. 371 - 381
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- 26 Nov 2017
- 05 Jul 2019
- 17 Sep 2019
Abstract
The widely used wavelets in the context of the matching pursuit are mostly focused on the time–frequency attributes of seismic traces. We propose a new type of wavelet basis based on the classic Ricker wavelet, where the quality factor Q is introduced. We develop a new scheme for seismic trace decomposition by applying the multi‐channel orthogonal matching pursuit based on the proposed wavelet basis. Compared with the decomposition by the Ricker wavelets, the proposed method could use fewer wavelets to represent the seismic signal with fewer iterations. Besides, the quality factor of the subsurface media could be extracted from the decomposition results, and the seismic attenuation could be compensated expediently. We test the availability of the proposed methods on both synthetic seismic record and field post‐stack data.