Seismic Time-frequency Analysis Using Improved Complete Ensemble Empirical Mode Decomposition
Y. Chen, W. Liu, G. Zhang, Z. Cheng and W. Chen
Event name: 78th EAGE Conference and Exhibition 2016
Session: Seismic Attributes I
Publication date: 31 May 2016
Info: Extended abstract, PDF ( 2.33Mb )
Price: € 20
Among all the time-frequency analysis approaches, the EMD-based approach have been proved to show higher spectral-spatial resolution than the state-of-the-art approaches. However, the mode mixing problem is always existing in these approaches which will affect the final interpretation performances. In this paper, we apply a novel improved complete ensemble empirical mode decomposition (ICEEMD) technique to time-frequency analysis of seismic data to better delineate the stratigraphic and structural properties of the subsurface. The ICEEMD approach can help decompose a 1D non-stationary signal into intrinsic modes with less noise and more physical meaning, which results in a higher frequency resolution in the time-frequency maps. Thus, the application of the technique to 2D and 3D seismic data has a potential to show a better geological and geophysical interpretation. We use a 1D real seismic trace, a 2D seismic section and a 3D seismic cube to show the superior performance of the proposed approach.