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

Coherent energy spectrum acquisition method

An acquisition method and energy spectrum technology, applied in seismic signal processing and other directions, can solve the problems of unreliable coherent energy spectrum values ​​and inability to reflect the relative relationship well, so as to reduce the amount of calculation, increase the calculation speed, and improve the accuracy Effect

Inactive Publication Date: 2013-05-08
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

;The amplitude value of the point adjacent to the point is used as the amplitude value of the point by rounding, so that the obtained coherent energy spectrum value of the point becomes unreliable; the purpose of obtaining the coherent energy spectrum is to reflect the value of the point The relative relationship of values, and the original result of direct output calculation can not reflect such a relative relationship; because the true color is used when displaying the coherent energy spectrum, it cannot reflect such a relative relationship well

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
  • Coherent energy spectrum acquisition method
  • Coherent energy spectrum acquisition method
  • Coherent energy spectrum acquisition method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Hereinafter, a coherent energy spectrum acquisition method according to an embodiment will be described in detail.

[0028] Firstly, field exploration and acquisition are carried out by methods known in the art to obtain the original collected data, and then seismic data processing is performed to obtain seismic data capable of coherent energy spectrum calculation. For example, seismic data can be pre-stacked data or post-stacked data. Horizontal stacking is for the reflection of multiple excitation points and multiple reception points at a certain position underground during the seismic exploration process. The signals received by different reception points from different excitation points of the same reflection point underground are corrected stack up.

[0029] Then, in the coherent energy spectrum acquisition method according to the embodiment, the "sparse point" method is used to calculate the coherent energy spectrum value. In the sparse point method, at least a ...

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 provides a coherent energy spectrum acquisition method. The method comprises the following steps of: calculating coherent energy spectrum values by selecting the seismic data of part of sampling points at certain intervals among a plurality of sampling points in each seismic channel from the seismic data from multiple seismic channels in the seismic data of a plurality of seismic channels by using a plurality of sampling points from each seismic channel according to certain intervals to calculate coherent energy spectrum values; in the calculation process, calculating coherent energy spectrum values by adopting a neighboring channel, a neighboring point, an inter-point interpolation, a time window and an N exponential mode; and in each seismic channel, performing interpolation by using the obtained coherent energy spectrum values of the selected sampling points to obtain the coherent energy spectrum values of the unselected sampling points. Therefore, the calculation quantity of the coherent energy spectrums can be reduced, and the coherent energy spectrums with high resolution can be acquired.

Description

technical field [0001] The invention relates to geophysical prospecting technology, more specifically, relates to a method capable of reducing the calculation amount of coherent energy spectrum and obtaining coherent energy spectrum with high resolution. Background technique [0002] After obtaining the observation system through conventional methods, geophysical exploration needs to further process the seismic data, which generally requires stacking and migration processing. When stacking and migrating in anisotropic media, accurate stacking and migration velocities, as well as anisotropic parameter values ​​are required. The primary method for obtaining these velocity and anisotropy parameter values ​​is to perform a velocity and anisotropy parameter sweep. From the minimum velocity and anisotropy parameter value to the maximum velocity and anisotropy parameter value, the calculation results are scanned sequentially. The result of the scan is reflected by the coherent en...

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 陈三平刘鸿何光明李磊巫骏陈丹朱晨
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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