Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method of fast correction processing of phase of seismic data

A technology for phase correction and seismic data, applied in seismic signal processing and other directions, which can solve the problems of time-consuming and low calculation efficiency for estimating phase correction factors

Active Publication Date: 2015-07-22
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Estimating the phase correction factor by sweeping method is very time-consuming and computationally inefficient

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
  • Method of fast correction processing of phase of seismic data
  • Method of fast correction processing of phase of seismic data
  • Method of fast correction processing of phase of seismic data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0102] A method for rapid phase correction processing of seismic data in the present invention is to eliminate the influence of residual wavelet phase by estimating the residual wavelet phase information and performing phase correction processing on seismic data records, so that the residual wavelet phase reaches or approaches zero phase to effectively improve seismic data resolution.

[0103] The present invention adopts following technical scheme to realize, comprises the following steps:

[0104] (1) Use artificial seismic sources to excite and collect seismic data, label the seismic data, define the observation system, velocity analysis, motion correction, deconvolution, stacking and other preprocessing work;

[0105] (2) Calculate the Kaiser window Hilbert factor sequence;

[0106] Calculating the Kaiser window Hilbert factor includes calculating a Kaiser window function, a Hilbert factor sequence and a Kaiser window Hilbert factor sequence. The Kaiser window function i...

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 discloses a method of fast phase correction processing of seismic data. The method adopts a Kaiser window Hilbert factor sequence, confirms a Hilbert seismic sequence and directly calculates and confirms a best phase correction factor the through estimation of phase information of residual wavelets, the phase correction processing the is carried out on seismic data records, the fact that influences of the residual wavelet phases are eliminated is achieved, so that the residual wavelet phases reach or are close to a zero phase so as to effectively improve the resolution ratio of the seismic data. The method of the fast phase correction processing of the seismic data only processes the phase of the seismic data wavelets, does not change amplitude spectrum of the data and has the advantages of being little in calculated amount, high in computation speed, good in stability and high in computational accuracy of the correction processing of the phase and has a certain anti-noise property.

Description

technical field [0001] The present invention relates to oil field exploration, development and mining technology, specifically a method for fast phase correction processing of seismic data that provides high-resolution seismic graphics and data for reflecting underground formation layers and oil reservoir descriptions, and is especially suitable for seismic data The actual seismic data after deconvolution is processed, and the remaining wavelet phase is corrected to eliminate the influence of the residual wavelet phase of the seismic data and improve the resolution of the seismic data. Background technique [0002] With the development of seismic exploration technology, the difficulty and depth of oil and gas exploration are increasing, and the requirements for the resolution of seismic data are also increasing. Deconvolution is the most effective way to improve the resolution of seismic data. Seismic convolution model is one of the most basic models in seismic exploration ...

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): G01V1/36
Inventor 高少武赵波祝树云祝宽海
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com