Method and device for evaluating seismic data processing results

Abstract

The invention provides a method and a device for evaluating seismic data processing results. The method includes the following steps: calculating the reflection coefficient according to an acoustic logging curve and a density logging curve; selecting a corresponding frequency point from each to-be-evaluated seismic data processing result as the wavelet frequency, and calculating the seismic wavelet corresponding to each to-be-evaluated seismic data processing result; calculating the synthetic record of each seismic wavelet according to each seismic wavelet and the reflection coefficient; and comparing the to-be-evaluated seismic data processing results and the synthetic records of the frequency points to get the correlation, wherein, the stronger the correlation between the seismic data processing result and the synthetic record is, the more truly the seismic data processing result of the corresponding frequency is. According to the technical scheme provided by the invention, each seismic data processing result is evaluated according to the synthetic record of the corresponding seismic wavelet. As the seismic wavelets can be processed at high resolution using the synthetic recordsthereof, the seismic processing results can be accurately evaluated using the synthetic record results of the seismic wavelets.

Description

Technical field [0001] The invention belongs to the technical field of geological prospecting, and specifically relates to a method and device for evaluating seismic data processing results. Background technique [0002] With the improvement of the degree of exploration and the more and more complex exploration geological targets, the requirements for the quality of seismic data are getting higher and higher. The original seismic data frequency cannot meet the needs of interpretation of small faults and thin sand and mudstone interbeds. Therefore, geophysical prospectors continue to improve the resolution of seismic data by broadening the bandwidth of seismic data. However, the highest frequency of seismic data is related to the original seismic acquisition and cannot be increased without limit. If the frequency of seismic data is broadened unrestrictedly, the seismic reflection characteristics of seismic data will be destroyed, and a kind of false high-frequency seismic data wi...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an evaluation method and device for seismic data processing results, which are used to solve the problem of inaccurate judgment of resolution-enhancing processing results in the prior art

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