Adaptive iterative deblending of simultaneous source seismic data based on sparse inversion

• Autorzy: Wei Yajie , Cao Jingjie , Huang Xiaogang , Chen Xue , Cai Zhicheng

Identyfikatory

DOI

10.1007/s11600-021-00561-1

• Języki publikacji: EN

Abstrakty

EN

Deblending of simultaneous-source seismic data is becoming more popular in seismic exploration since it can greatly improve the efciency of seismic acquisition and reduce acquisition cost. At present, the deblending methods of simultaneous-source seismic data are mainly divided into two types: fltering method and sparse inversion method. Compared with the fltering method, the sparse inversion method has higher precision, but the selection of its parameter value mainly depends on experience, which is not suitable for large-scale seismic data processing. In this paper, an adaptive iterative deblending method based on sparse inversion is proposed. By improving the original iterative solution method of regularization inversion model, the efective signal and blending noise are weakened simultaneously in the iterative process, so that the energy intensity of blending noise is consistent with that of the efective signal in each iterative, so as to ensure the consistency of the regular parameter calculation method of each iteration. By analyzing the distribution of coefcients in the curvelet domain of pseudo-deblending data and blending noise, it is concluded that the value of regular parameters is the maximum amplitude of residual pseudo-deblending data in the curvelet domain multiplied by a coefcient between 0 and 1. In the process of iterative deblending, the regularized parameters are obtained adaptively from the data itself. It not only ensures the accuracy of the calculation results, but also improves the calculation efciency, which is suitable for large-scale seismic data processing.

Słowa kluczowe

EN

sparse inversion; adaptive; curvelet transform; deblending

PL

inwersja rzadka; adaptacja; transformacja falkowa

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2021
• Tom: Vol. 69, no. 2
• Strony: 497--507
• Opis fizyczny: Bibliogr. 29 poz.

Twórcy

autor

Wei Yajie

• Hebei Key Laboratory of Strategic Critical Mineral Resources, Hebei GEO University, Shijiazhuang 050031, China

• https://orcid.org/0000-0002-0531-3175

autor

Cao Jingjie

• Hebei Key Laboratory of Strategic Critical Mineral Resources, Hebei GEO University, Shijiazhuang 050031, China

• https://orcid.org/0000-0001-8176-5651

autor

Huang Xiaogang

• CNOOC Research Institute Co., Ltd, Beijing 100028, China

autor

Chen Xue

• Hebei Key Laboratory of Strategic Critical Mineral Resources, Hebei GEO University, Shijiazhuang 050031, China

autor

Cai Zhicheng

• Hebei Key Laboratory of Strategic Critical Mineral Resources, Hebei GEO University, Shijiazhuang 050031, China

Bibliografia

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