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A fast method for generating high-resolution single-frequency seismic attributes

MOHAMMAD RADAD,  ALI GHOLAMI,  HAMID REZA SIAHKOОHI
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Institute of Geophysics, University of Tehran, Iran.,
JSE 2016, 25(1), 11–25;
Submitted: 23 April 2015 | Accepted: 22 October 2015 | Published: 1 February 2016
© 2016 by the Authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution -Noncommercial 4.0 International License (CC-by the license) ( https://creativecommons.org/licenses/by-nc/4.0/ )
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Abstract

Radad, M., Gholami, A. and Siahkoohi, H.R., 2016. A fast method for generating high-resolution single-frequency seismic attributes. Journal of Seismic Exploration, 25: 11-25. Single-frequency seismic attributes play an important role in seismic data interpretation. The resolution of single-frequency seismic sections and the run time for generating them are two main factors which need significant attention when dealing with large seismic data sets. In this paper, using the Fourier domain formulation of time-frequency analysis, we formulate the problem of extracting a single-frequency section from time-frequency representation of the data, without requiring the analysis of all frequencies. Furthermore, using an optimization algorithm based on maximum energy concentration, a method is proposed for automatic adjustment of the width of window required for extracting local information around the desired frequency. Application on 2D and 3D seismic data sets for detecting low-frequency shadow of gas-bearing zones and channel detection confirmed the high performance of the proposed method and its efficiency compared to conventional time-frequency based techniques like standard S-transform.

Keywords
single-frequency
energy concentration
seismic attribute
gas and channel detection
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Journal of Seismic Exploration, Print ISSN: 0963-0651, Published by AccScience Publishing
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