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Multiple Attenuation Based on Mathematical Morphology Filtering Method
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 77th EAGE Conference and Exhibition 2015, Jun 2015, Volume 2015, p.1 - 5
Abstract
Multiple attenuation is a troublesome problem in many seismic exploration areas. Current multiple suppression technique include two kinds of method: filter-based method and prediction-based method. However, these methods are powerless when the energy of multiples and primaries are mixed. Therefore, we introduce mathematical morphology method to seismic exploration as a new method to solve this problem. We found that multiples have similar seismic wavelet with that of primary reflection, and also have distinct seismic event. These seismic events give us a chance to distinguish the multiples and the primary reflections. Morphological filter is based on multiscale decomposition method. It use different structuring element to separate the multiples and the primary reflection clearly, and thus making multiple attenuation as well as saving subtle signal of primary reflection. In this abstract, we illustrate this method and give an examples of its application in synthetic and real data.