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Pre-stack seismic data linear interference suppression method and system

A linear interference, pre-stack seismic technology, applied in the field of seismic exploration data processing, can solve problems such as slow calculation speed, poor suppression effect, damage to effective signals, etc., to achieve the effect of strengthening generalization, improving suppression efficiency, and rapid suppression

Active Publication Date: 2021-12-03
XI AN JIAOTONG UNIV
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  • Description
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Problems solved by technology

[0007] 1. The number of singular values ​​used to reconstruct effective signals and interference waves needs to be obtained through trial and error. Inaccurate results will result in poor suppression or damage to effective signals.
[0008] 2. When dealing with massive seismic data, the calculation speed is slow

Method used

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  • Pre-stack seismic data linear interference suppression method and system
  • Pre-stack seismic data linear interference suppression method and system
  • Pre-stack seismic data linear interference suppression method and system

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Embodiment Construction

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0062] In the description of the present invention, it should be understood that the terms "comprising" and "comprising" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or more other features, Presence or addition of wholes, steps, operations, elements, components and / or collections thereof.

[0063] It should also be understood that the terminology used in the descriptio...

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Abstract

The invention discloses a pre-stack seismic data linear interference suppression method and system. Comprising the following steps: reading original seismic shot gather data; subjecting only a small part of shot gather data in the read seismic shot gather data to filtering processing based on a linear interference suppression method; constructing a network training set based on the effective wave data obtained through processing and the filtered part; constructing a test set based on all the read data; learning the constructed training set by using a two-dimensional convolutional neural network to obtain a linear interference model; and carrying out linear interference effective suppression on all the read shot gather data. The processing speed of the invention is far higher than that of a traditional method for respectively processing each shot gather data.

Description

technical field [0001] The invention belongs to the technical field of seismic exploration data processing, in particular to a method and system for suppressing linear interference of pre-stack seismic data. Background technique [0002] The interference waves contained in seismic data are mainly divided into two types: irregular interference waves and regular interference waves, among which the regular interference waves with obvious linear structure on the seismic section are called linear interference waves. Linear interference waves are common in the seismic data collected from most of the road collection areas in my country (for example: mountainous areas, sand dune areas, and western areas with thin surface coverage). Its existence will seriously reduce the signal-to-noise ratio of seismic data, and even completely submerge invalid signals, making subsequent series of processing and final geological interpretation inaccurate. For example, in a seismic exploration proj...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G06N3/04G01V1/36
CPCG01V1/364G06N3/045G06F2218/04G06F2218/08G06F18/214
Inventor 陈文超胡杨丽江刘达伟王晓凯师振盛
Owner XI AN JIAOTONG UNIV
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