Seismic data cross-equalization processing method and device, storage medium and electronic equipment

By performing signal-to-noise ratio and spectral consistency processing on seismic data from different periods, the problem of non-reservoir differences on time-shifted seismic profiles was solved, and mutual averaging of seismic data was achieved, ensuring the accuracy and consistency of the data. This method is applicable to seismic data processing in geophysical exploration.

CN115963534BActive Publication Date: 2026-07-14CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2021-10-09
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The discrepancy between non-reservoir areas on time-shifted seismic profiles is mainly due to the influence of various external factors during data acquisition at different times, leading to differences in inversion results.

Method used

By acquiring post-stack seismic data from different periods, signal-to-noise ratio (SNR) consistency processing and spectral consistency processing are performed. Using a pre-defined SNR model and frequency extension technology, SNR and spectral inconsistencies are eliminated, thus achieving mutual equalization of seismic data.

Benefits of technology

It eliminates the influence of various external factors during data acquisition at different times, avoids non-reservoir differences on time-shifted seismic profiles, ensures the accuracy and consistency of seismic data, and can better reflect the reservoir structure and fluid changes of oil reservoirs.

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Abstract

The application provides a seismic data mutual equalization processing method and device, a storage medium and an electronic device. The method comprises the following steps: acquiring post-stack seismic data collected in different periods; performing signal-to-noise ratio consistency processing on the post-stack seismic data; and further performing spectrum consistency processing on the post-stack seismic data after the signal-to-noise ratio consistency processing to obtain a mutual equalization processing result. The method solves the problem of non-reservoir differences on a time-lapse seismic profile, eliminates the influence of various external factors in the data collection process in different periods, and avoids non-reservoir differences on the time-lapse seismic profile.
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