Applied Geophysics

, Volume 14, Issue 4, pp 543–550 | Cite as

Inversion-based data-driven time-space domain random noise attenuation method

  • Yu-Min Zhao
  • Guo-Fa Li
  • Wei Wang
  • Zhen-Xiao Zhou
  • Bo-Wen Tang
  • Wen-Bo Zhang
Article
  • 23 Downloads

Abstract

Conventional time-space domain and frequency-space domain prediction filtering methods assume that seismic data consists of two parts, signal and random noise. That is, the so-called additive noise model. However, when estimating random noise, it is assumed that random noise can be predicted from the seismic data by convolving with a prediction error filter. That is, the source-noise model. Model inconsistencies, before and after denoising, compromise the noise attenuation and signal-preservation performances of prediction filtering methods. Therefore, this study presents an inversion-based time-space domain random noise attenuation method to overcome the model inconsistencies. In this method, a prediction error filter (PEF), is first estimated from seismic data; the filter characterizes the predictability of the seismic data and adaptively describes the seismic data’s space structure. After calculating PEF, it can be applied as a regularized constraint in the inversion process for seismic signal from noisy data. Unlike conventional random noise attenuation methods, the proposed method solves a seismic data inversion problem using regularization constraint; this overcomes the model inconsistency of the prediction filtering method. The proposed method was tested on both synthetic and real seismic data, and results from the prediction filtering method and the proposed method are compared. The testing demonstrated that the proposed method suppresses noise effectively and provides better signal-preservation performance.

Keywords

Random noise attenuation prediction filtering seismic data inversion regularization constraint 

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Copyright information

© Editorial Office of Applied Geophysics and Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  • Yu-Min Zhao
    • 1
    • 2
  • Guo-Fa Li
    • 1
    • 2
  • Wei Wang
    • 1
    • 2
  • Zhen-Xiao Zhou
    • 3
  • Bo-Wen Tang
    • 3
  • Wen-Bo Zhang
    • 3
  1. 1.State Key Laboratory of Petroleum Resources and ProspectingChina University of PetroleumBeijingChina
  2. 2.CNPC Key Laboratory of Geophysical ProspectingChina University of PetroleumBeijingChina
  3. 3.BGP Geophysical Research CenterZhuozhouChina

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