Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Nuclear magnetic resonance echo data compression method and device

A technology of echo data and nuclear magnetic resonance, which is applied in the direction of electronic magnetic resonance/nuclear magnetic resonance detection, measurement device, and re-radiation of sound waves, which can solve the problems of unsuitable universal application and complexity.

Active Publication Date: 2015-11-11
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the combined method of window averaging and singular value truncation is more complicated and not suitable for popular application.

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
  • Nuclear magnetic resonance echo data compression method and device
  • Nuclear magnetic resonance echo data compression method and device
  • Nuclear magnetic resonance echo data compression method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] Such as figure 1 As shown, it is a flowchart of a method for compressing nuclear magnetic resonance echo data proposed by the present invention. include:

[0051] Step 101): Obtaining the NMR echo data to be analyzed;

[0052] Step 102): Using the nuclear magnetic resonance echo data to obtain the principal components of the nuclear magnetic resonance echo data;

[0053] Step 103): Using the principal components of the nuclear magnetic resonance echo...

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 a nuclear magnetic resonance echo data compression method and device. The compression method comprises the steps that nuclear magnetic resonance echo data to be analyzed are acquired; the main components of the nuclear magnetic resonance echo data are acquired by utilizing the nuclear magnetic resonance echo data; a compression matrix is constructed by utilizing the main components of the nuclear magnetic resonance echo data; and the nuclear magnetic resonance echo data is compressed by utilizing the compression matrix. According to the technical scheme, information with extremely low contribution to representation of stratum characteristics and even redundant information in the original echo data can be effectively eliminated so that the characteristics of the original data can still be maintained under the condition of high compression ratio, and inversion speed can be effectively enhanced and computational memory can be reduced under the condition of being without losing accuracy.

Description

technical field [0001] The invention relates to the technical field of well logging data processing in oil and gas exploration, in particular to a method and device for compressing nuclear magnetic resonance echo data. Background technique [0002] NMR logging needs to collect hundreds of echo data. Inverting a large amount of echo data requires a very large computer memory, and the calculation speed is very slow. And this large amount of echo data contains a lot of little or even redundant information that contribute little to characterizing formation properties. In particular, the application of two-dimensional and multi-dimensional nuclear magnetic resonance technology in identifying reservoir fluids makes the echo string data collected by nuclear magnetic resonance logging even larger. If data compression is not performed, a large amount of echo data can be directly inverted. It not only requires a very large computer memory, but also seriously affects the calculation ...

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 Applications(China)
IPC IPC(8): G01V3/38G01V3/32
Inventor 谢然红丁业娇邹友龙郭江峰
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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
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