Supercharge Your Innovation With Domain-Expert AI Agents!

Wavefield separation method for vsp data

A wave field separation and data technology, applied in the direction of seismic signal processing, etc., can solve the problem of reduced separation efficiency and achieve the effect of accurate and efficient separation

Active Publication Date: 2019-12-17
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the cumbersome leveling and back-pulling process of this method, the separation efficiency is greatly reduced, and only one wave field information can be removed at a time.

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
  • Wavefield separation method for vsp data
  • Wavefield separation method for vsp data
  • Wavefield separation method for vsp data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Hereinafter, preferred embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the drawings show preferred embodiments of the present disclosure, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0026] In order to enable those skilled in the art to better understand the present invention, firstly, the conventional wavefield separation technology based on median filtering is introduced in detail.

[0027] Median filtering is a nonlinear signal processing technology based on ranking statistical theory. Median filtering can suppress and eliminate noise. The basic principle of median filtering is to replace the value of...

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 VSP data wave field separation method. The VSP data wave field separation method comprises steps of performing wave field pickup on VSP data to be processed to obtain information of multiple groups of wave fields, recording position of an event of each group of wave fields, for each in-phase axis and targeting each point on the event, delimiting a time window for the point according to the position of the point, and for each event and targeting each point on the event, performing one-dimensional median filtering processing on the point according to the time window delimited for the point. The VSP data wave field separation method eliminates processes of flattening and pull-back in the prior art, can process multiple groups of wave filed information at the same time and improves efficiency of wave field separation.

Description

Technical field [0001] The present invention relates to wave field separation technology, in particular to a wave field separation method of VSP data. Background technique [0002] Wavefield separation is a very important step in VSP data processing. For VSP data, accurate and efficient wavefield separation is the basis of data processing, because VSP data contains a lot of wavefield information, and various wavefields are interwoven. Therefore, it is necessary to perform efficient and accurate wavefield separation on this complex wavefield, and obtain a relatively accurate single wavefield to facilitate the next step of data processing and improve the utilization of VSP data. [0003] Accurate and efficient separation of wavefield information such as upward wave, downward wave and converted wave in the VSP data trace is conducive to obtaining better underground media attribute information, and provides good preconditions for obtaining a good imaging profile in the following migrat...

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 Patents(China)
IPC IPC(8): G01V1/28
CPCG01V1/28
Inventor 宋林徐兆涛李栋刘旭跃
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com