Method, device and server for processing phase-segmented seismic data

Abstract

This specification provides a processing method, device and server for phased seismic data. Among them, based on the above method, the acquired reflection seismic data of the target area are decomposed by Gabor transform-based sparse constrained inversion spectrum to obtain the corresponding time-frequency amplitude spectrum data and time-frequency phase spectrum data; and then in the frequency domain On the basis of the preset phase error limit, the time-frequency amplitude spectrum data and the time-frequency phase spectrum data, perform phase-by-phase reconstruction to obtain the data body after phase-by-phase reconstruction; The phase-reconstructed data volume is inversely processed by Gabor transform-based sparse constrained inversion spectral decomposition to obtain phase-separated seismic data that meet the requirements. Therefore, phase-separated seismic data containing specific phase component information can be obtained that is more accurate and has high seismic interpretation value, and then the above-mentioned phase-separated seismic data can be used to more precisely describe the reservoir characteristics of the target area.

Description

technical field [0001] This specification belongs to the technical field of geophysical exploration, and in particular relates to a processing method, device and server for phase-separated seismic data. Background technique [0002] In seismic exploration, technicians often use existing methods such as short-time Fourier transform, wavelet transform or matching pursuit algorithm to perform spectral decomposition of seismic data. [0003] However, the phase spectrum data obtained by spectral decomposition based on the above method is limited by the relevant algorithm mechanism, so the expression of the information contained in the obtained phase spectrum data is usually more complicated, and it is difficult to be used for specific seismic interpretation , thus affecting the seismic interpretation value of the data. [0004] It can be seen that when the existing method is implemented, there is often a technical problem that it is impossible to efficiently obtain phase-separat...

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Problems solved by technology

[0003] However, the phase spectrum data obtained by spectral decomposition based on the above method is limited by the relevant algorithm mechanism, so the expression of the information contained in the obtained phase spectrum data is usually more complicated, and it is difficult to be used for specific seismic interpretation , which in turn affects the seismic interpretation value of the data

[0004] It can be seen that when the existing method is implemented, there are often technical problems that it is impossible to efficiently obtain phase-separated seismic data that is more accurate and has high seismic interpretation value

[0005] For the above technical problems, no effective solution has been proposed yet

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