Unlock instant, AI-driven research and patent intelligence for your innovation.

Effective seismic signal extraction method and device, equipment and storage medium

A seismic signal and extraction method technology, applied in seismic signal processing, seismology, measuring devices, etc., can solve problems such as poor fidelity of seismic signals, high interference intensity, and low signal-to-noise ratio

Active Publication Date: 2020-08-14
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the intensity of the interference is high and the signal-to-noise ratio is too low, the noise interference signal removed by the spatial prediction filter will contain the effective seismic signal, that is, the frequency-space domain prediction filter cannot completely separate the effective seismic signal from the noise interference signal open, making the fidelity of the processed effective seismic signal poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Effective seismic signal extraction method and device, equipment and storage medium
  • Effective seismic signal extraction method and device, equipment and storage medium
  • Effective seismic signal extraction method and device, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0092] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the following further describes the embodiments of the present disclosure in detail with reference to the accompanying drawings.

[0093] figure 1 It is a schematic flowchart of an effective seismic signal extraction method provided by an embodiment of the present disclosure. See figure 1 , The method includes:

[0094] Step S11: Obtain seismic data.

[0095] In the embodiment of the present disclosure, the seismic data may be artificially simulated seismic data. For example, it can be the data received by the receiving point after the wavelet excited by the air gun is reflected by the ground, and the data is artificially simulated seismic data. Of course, the seismic data can also be real seismic data, which is not limited in the present disclosure.

[0096] Step S12: Perform noise suppression processing on the acquired seismic data to obtain predicted seismic signals and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an effective seismic signal extraction method and device, equipment and a storage medium, and belongs to the technical field of seismic processing. The method comprises the following steps: acquiring seismic data; performing noise suppression processing on the acquired seismic data to obtain a predicted seismic signal and a predicted noise interference signal; obtaining afirst autocorrelation function of the predicted seismic signal, a second autocorrelation function of the predicted noise interference signal and a cross-correlation function of the predicted seismic signal and the predicted noise interference signal; determining an energy coefficient characteristic equation of the effective seismic signal based on the first autocorrelation function, the second autocorrelation function and the cross-correlation function; determining the optimal effective seismic signal energy coefficient of the effective seismic signal based on the energy coefficient characteristic equation of the effective seismic signal; and determining an effective seismic signal based on the optimal effective signal energy coefficient and the predicted seismic signal.

Description

Technical field [0001] The present disclosure relates to the technical field of seismic processing, and in particular to a method, device, equipment and storage medium for extracting effective seismic signals. Background technique [0002] Seismic data processing refers to the removal of noise and interference signals in seismic data and the preservation of effective seismic signals in seismic data. [0003] The frequency-space domain prediction filtering method is currently the most commonly used method of seismic data processing. The frequency-spatial domain prediction filtering method is to set a spatial prediction filter on the propagation path of the effective seismic signal along the propagation direction of the effective seismic signal, remove the noise interference signal from the seismic data through the spatial prediction filter, and retain the seismic data Effective seismic signal in [0004] If the intensity of the interference is large and the signal-to-noise ratio is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/36
CPCG01V1/364G01V2210/324G01V2210/48
Inventor 高少武张少华
Owner BC P INC CHINA NAT PETROLEUM CORP