Contourlet transformation based seismic multi-attribute fusion method

A technology of seismic attributes and fusion methods, applied in the direction of seismic signal processing, etc., can solve the problem that wavelet transform cannot make full use of data geometric characteristics, achieve good airspace characteristics, reduce risks, and eliminate redundant information.

Inactive Publication Date: 2013-01-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

It can be seen that in the case of high dimensions, the wavelet transform cannot make full use of the unique geometric characteristics of the data itself, and it is not the optimal or "sparse" function representation algorithm

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  • Contourlet transformation based seismic multi-attribute fusion method
  • Contourlet transformation based seismic multi-attribute fusion method
  • Contourlet transformation based seismic multi-attribute fusion method

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[0046] Those skilled in the art can realize the purpose of the present invention through the above description of the content of the present invention and the further description of the following implementation examples. However, this embodiment is only a part of the present invention and should not be taken as limiting the scope of the present invention.

[0047] Contourlet transform is a multi-resolution, flexible locality and directional information representation method realized by using Laplacian Pyramid (LP) and Directional Filter Bank (DFB). The Laplacian pyramid decomposition realizes the multi-resolution analysis of the signal, and the LP decomposition of each level produces a downsampled low-pass part and a non-downsampled high-pass part, as shown in Figure 4, H 0 ,H 0 Respectively, the decomposition and synthesis filters in the decomposition process, H 1 ,G 1 are the decomposition and synthesis filters in the reconstruction process, respectively, and M is the sam...

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Abstract

The invention belongs to the application fields of seismic data oil gas predication, oil gas resource exploration and signal processing, and provides a Contourlet transformation based seismic multi-attribute fusion method. Effectiveness of description attribute information is improved by means of expression of multiresolution, multidirection, localization and anisotropy of signals to make full use of existing various attribute information, accuracy in seismic target calibration is improved, and accordingly reservoir predication and fluid recognition can be completed more accurately.

Description

technical field [0001] The invention belongs to the application fields of seismic data oil and gas prediction, oil and gas resource exploration and signal processing, and is a method for realizing seismic multi-attribute fusion by using Contourlet transformation. The seismic attribute fusion result obtained by the method of the invention is rich in information and high in resolution, and Redundant information is eliminated, thereby reducing the multiple solutions of oil and gas prediction with a single seismic attribute, and providing scientific and reasonable guidance for reducing the risk of oil and gas exploration and development. Background technique [0002] In recent years, seismic attribute technology has developed rapidly and has been widely used in various fields such as stratigraphic sequence analysis, reservoir characterization, and reservoir dynamic detection, and has become the core part of reservoir geophysics. Seismic attributes have also developed from the ea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28G01V1/30
Inventor 彭真明谢成芳李全忠赵敏黄振星张伟王圣川张萍
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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