Seismic data velocity interpolation method and system

A technology of seismic data and interpolation method, applied in seismic signal processing and other directions, can solve the problem that the velocity obtained by interpolation is no longer accurate, affecting the imaging results, etc., to improve the imaging results, improve the accuracy of velocity interpolation, and accurately reflect the effect.
CN106569261AInactive Publication Date: 2017-04-19CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2017-04-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a seismic data velocity interpolation method and system; the method comprises the following steps: obtaining a velocity value of the seismic data; using Cubic Convolution to carry out interpolation operation for the obtained velocity value; carrying out imaging process for the seismic data according to the velocity value after interpolation operation. The method and system can improve the velocity interpolation precision, thus improving imaging result, and more accurately reflecting subsurface structure lateral variations.
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Description

technical field

[0001] The present disclosure relates to the field of seismic signal processing, in particular to a seismic data velocity interpolation method and system. Background technique

[0002] In the process of seismic data processing, velocity analysis is a very important process, which affects the accuracy of imaging and determines the success or failure of processing. However, in interactive velocity analysis, due to the workload and the limitation of actual conditions, it is difficult to pick up velocity points for each surfel. Therefore, in the production process, the speed points are usually analyzed at a certain interval based on the data line point number of the loaded grid, and then calculated through space interpolation to increase the density of the speed analysis points, thereby improving the accuracy of data processing and improving The final imaging result. In the prior art, the commonly used methods for velocity analysis of seismic data are bilinear ...

Claims

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