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Deblending of Simultaneous Source Data Using a Non-Uniform, Hybrid-Radon Transform
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 81st EAGE Conference and Exhibition 2019, Jun 2019, Volume 2019, p.1 - 5
Abstract
A deblending workflow has been developed to separate simultaneous sources for land or marine data and in the presence of strong coherent interference. The workflow involves applying a hybrid-Radon transform which uses time-frequency decomposition with irregular sampling, to separate coherent signals from incoherent blended sources. The deblending process is solved on a source-by-source basis by minimizing a non-linear objective function subject to a sparsity constraint. An iterative procedure is developed to find the solution of the non-linear objective function. The deblending workflow has been applied to deblend land and marine seismic data with different numbers of simultaneous sources and varying degrees of structural complexity. It is shown that the deblending workflow can separate the sources even in the presence of aliasing, coherent interference and wave dispersion.