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

Deconvolution method of multi-path double-spectral domain mixed phase wavelets

A zero-phase wavelet and mixed-phase technology, which is applied in the field of multi-path dual-spectral domain mixed-phase wavelet deconvolution, can solve problems such as inadvisability and large computational load, and achieve noise suppression, resolution improvement, and estimation accuracy improvement. Effect

Active Publication Date: 2014-05-28
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these solving methods have a large amount of computation, which is not advisable for massive seismic data processing.

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
  • Deconvolution method of multi-path double-spectral domain mixed phase wavelets
  • Deconvolution method of multi-path double-spectral domain mixed phase wavelets
  • Deconvolution method of multi-path double-spectral domain mixed phase wavelets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] Embodiments of the invention will now be described in detail, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

[0058] like figure 1 As shown, in step S110, n seismic records x(ix, t) are selected from the collected reflection seismic records, where n is an integer greater than 1 and ix=1, 2, . . . , n.

[0059] In step S120, the amplitude spectrum w(f) of the wavelet is determined according to the selected n-channel seismic records. The method of determining the amplitude spectrum w(f) of the wavelet will be described in detail later.

[0060] In step S130, the phase spectrum φ(ω) of the wavelet is determined according to the selected n-channel seismic records. The method of determining the phase spectrum φ(ω) of the wavelet will be described in detail later.

[0061] In step S140,...

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 deconvolution method of multi-path double spectral domain mixed phase wavelets, comprising the following steps: selecting n earthquake records from the collected seismic records; determining the amplitude spectrum of the wavelet according to the selected n earthquake records; determining the phase spectrum of the wavelet according to the selected n earthquake records; implementing the inverse Fourier transform according to the amplitude spectrum and the phase spectrum of the determined wavelet to obtain the mixed phase wavelet of the time domain; determining the zero phase wavelet which is expected to output according to the amplitude spectrum of the expected output wavelet input by users based on the amplitude spectrum of the determined wavelet; adopting the mixed phase wavelet as input and adopting the zero phase wavelet as output to determine the deconvolution filter through the filter wave matching; and obtaining the earthquake records of which the resolution ratio is improved based on the deconvolution filter and the earthquake records.

Description

technical field [0001] The invention relates to the field of petroleum exploration seismic data processing, in particular to a multi-path dual-spectral domain mixed-phase wavelet deconvolution method capable of improving the resolution of seismic data. Background technique [0002] Seismic exploration is an exploration method that uses artificial seismic technology to detect underground structures and lithology. It excites seismic waves near the surface in a certain way to generate vibration signals called seismic wavelets. The seismic wavelets start to propagate underground from the source, and after encountering the geological interface, transmission and reflection occur at the interface, and the transmitted seismic waves The wave continues to propagate downward, while the reflected wavelet propagates upward at the reflection point position of the interface, and its intensity and polarity depend on the magnitude and sign of the interface reflection coefficient. The reflec...

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
Inventor 张华陈爱萍何光明金德刚罗红明曹中林尹陈王珑
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