Method, device and equipment for determining polarity zero phasing of offshore seismic data and medium

A seismic data and zero-phase technology, which is applied in seismic signal processing and other directions, can solve the problems that the zero-phase technology is not ideal and the zero-phase processing is not comprehensive enough, so as to achieve precise prediction of reservoir location, reduce acquisition cost, and realize development Effect

Pending Publication Date: 2022-07-15
北京东方联创地球物理技术有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps reduce costs while still capturing accurate geophysical measurements without requiring long baseline waves. It also corrects errors introduced during signal transmission due to stratification layers along fault lines, resulting in more precise analysis compared to previous methods such as reflection tomography (RT). Additionally, this technique improves accuracy when used over large areas where there may be many reflectors between them. Overall, it provides an effective way to study underground oil deposits efficiently and effectively through various techniques like surface migration imagery (SMO) scans.

Problems solved by technology

This patented technical solution describes how to determine if two waves are different from each other due to their own directionality (their arrival time). By performing null-phase analysis at specific points along one line called the boundary layer, we found out whether these waves were caused by physical processes like fault movement or geology activity. To solve this issue, researchers have developed various numerical algorithms such as finite element simulations, spectral decomposition, etc., to accurately analyze both seismics data and calculate the best way to process them.

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, device and equipment for determining polarity zero phasing of offshore seismic data and medium
  • Method, device and equipment for determining polarity zero phasing of offshore seismic data and medium
  • Method, device and equipment for determining polarity zero phasing of offshore seismic data and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] figure 1 A flow chart showing the steps of a method for determining polar zero phasing from marine seismic data according to one embodiment of the present invention.

[0056] like figure 1As shown, the method for determining polarity zero-phase from marine seismic data includes: step 101, performing ghost wave removal and multiple wave removal processing for normal polarity seismic data to obtain seismic data of minimum phase wavelets; step 102, for minimum phase wavelet seismic data; Deconvolution processing is performed on the seismic data of the wavelet to obtain deconvolution seismic data; step 103, compensation phase difference processing is performed on the deconvolution seismic data to obtain zero-phase seismic data.

[0057] In one example, the output zero-phase seismic data is of negative polarity.

[0058] In one example, the method further includes: performing phase rotation for normal polarity seismic data, and outputting zero-phase seismic data after phas...

Embodiment 2

[0090] Figure 7 A block diagram of an apparatus for determining polarity zero phasing of marine seismic data according to an embodiment of the present invention is shown.

[0091] like Figure 7 As shown, the marine seismic data determines a polar zero-phasing device comprising:

[0092] The ghost wave removal and multiple wave removal processing module 201 performs ghost wave removal and multiple wave removal processing for normal polarity seismic data to obtain seismic data of minimum phase wavelets;

[0093] The deconvolution module 202 performs deconvolution processing on the seismic data of the minimum phase wavelet to obtain deconvolution seismic data;

[0094] The compensation phase difference module 203 performs compensation phase difference processing on the deconvolution seismic data to obtain zero-phase seismic data.

[0095] In one example, the output zero-phase seismic data is of negative polarity.

[0096] In one example, the method further includes: perform...

Embodiment 3

[0106] The present disclosure provides an electronic device comprising: a memory storing executable instructions; and a processor, where the processor runs the executable instructions in the memory, so as to implement the above-mentioned method for determining polarity and zero phasing of marine seismic data.

[0107] An electronic device according to an embodiment of the present disclosure includes a memory and a processor.

[0108] The memory is used to store non-transitory computer readable instructions. In particular, memory may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory (cache), among others. The non-volatile memory may include, for example, read only memory (ROM), hard disk, flash memory, and the like.

[0109]The processor may be a central processing unit...

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 an offshore seismic data determination polarity zero phasing method, device and equipment and a medium. The method comprises the following steps: removing ghost waves and multiples from normal polarity seismic data to obtain seismic data of minimum phase wavelets; performing deconvolution processing on the seismic data of the minimum phase wavelet to obtain deconvolution seismic data; and performing phase difference compensation processing on the deconvolution seismic data to obtain zero-phase seismic data. According to the method, the determined polarity zero phasing of the offshore seismic data is realized, the zero phasing processing effect of the seismic wavelets is obvious, the resolution ratio is high, the wave group characteristics are good, and the method has a good application prospect.

Description

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

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
Owner 北京东方联创地球物理技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap