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Method and device for evaluating seismic data processing results

A technology for seismic data and processing results, applied in the field of geological exploration, can solve problems such as inaccurate judgment of resolution processing results, and achieve the effect of accurate evaluation

Active Publication Date: 2019-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Claims
  • Application Information

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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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  • Method and device for evaluating seismic data processing results
  • Method and device for evaluating seismic data processing results

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Embodiment Construction

[0049] The invention provides an evaluation method and device for seismic data processing results, which are used to solve the problem of inaccurate judgment of processing results of improved resolution in the prior art.

[0050] To achieve the above object, the technical solution provided by the invention is:

[0051] A method for evaluating seismic data processing results, comprising the steps of:

[0052] (1) Calculate the reflection coefficient according to the acoustic logging curve and the density logging curve;

[0053] (2) Select corresponding frequency points from the processing results of the seismic data to be evaluated, and use them as corresponding wavelet frequencies to calculate the seismic wavelets corresponding to the processing results of the seismic data to be evaluated;

[0054] (3) Calculate the synthetic record of each seismic wavelet according to the obtained seismic wavelets and reflection coefficients;

[0055] (4) Comparing the seismic data processi...

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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 exploration, and in particular relates to an evaluation method and device for seismic data processing results. Background technique [0002] With the improvement of exploration level and the increasingly complex exploration geological targets, the requirements for the quality of seismic data are getting higher and higher. The frequency of the original seismic data cannot meet the needs of interpretation of small faults and thin sand-shale interbeds. Therefore, geophysical personnel continue to improve the resolution of seismic data by widening the processing means of seismic data frequency bandwidth. 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 without limitation, the seismic reflection characteristics of the seismic data will be destroyed, and a false high-freq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V13/00
CPCG01V13/00
Inventor 张永华陈祥严永新杨云飞赵雨晴杜伟朱景修罗家群郑凯文李黎明郭毅
Owner CHINA PETROLEUM & CHEM CORP
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