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

Geophysical prospecting two-dimensional electrical sounding data chromatography inversion processing technology

A geoelectric and various technology, applied in the field of geophysical two-dimensional electrical sounding data tomography inversion processing technology, can solve the problems of difficult to meet the actual geological conditions, the final results are very biased and unacceptable, etc. Application range enhancement, suppressing the effects of terrain fluctuations, improving speed and efficiency

Inactive Publication Date: 2012-07-11
蔡运胜
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of these methods have error transfer and accumulation, which makes the final result very biased and unacceptable; some are just a simple change of viewing angle without essential separation and change; some are difficult to meet the actual geological conditions because of the harsh application conditions Adopted
In short, the data processing effect of many methods is not very good

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
  • Geophysical prospecting two-dimensional electrical sounding data chromatography inversion processing technology
  • Geophysical prospecting two-dimensional electrical sounding data chromatography inversion processing technology
  • Geophysical prospecting two-dimensional electrical sounding data chromatography inversion processing technology

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0010] Example 1 It is a comparison chart of high-power DC IP sounding, data tomography processing and deep drilling verification results in a gold-polymetallic mining area in Humeng, Inner Mongolia.

[0011] figure 1 (Cross-section diagram of the apparent charging rate contour of the original observation of IP sounding), which is a cross-section diagram of the contour line of the original observation of the unprocessed IP sounding. The value gradually increases, and the shape of the shallow curve is relatively regular. When the distance between the supply electrode and the electrode is AB / 2=340-1500m, a near-closed high charging rate anomaly appears in the deep part, with a large range and a central amplitude of 14-15mV / V.

[0012] figure 2 (Cross-section diagram of the original observed apparent resistivity contour of IP sounding), which is a cross-sectional diagram of the unprocessed original observed apparent resistivity contour. The field value is 100-180Ω.m, and bo...

example 2

[0017] Example 2 It is a copper-nickel polymetallic mining area in Pingran Village, Huapan Province, Laos. The comparison of the tomographic processing and interpretation of IP sounding data and the verification results of prospecting adit. The survey area is located in the alpine and dense forest area of ​​Southeast Asia, with large undulating terrain, humid climate and very complex geological conditions. The deposit type is an ultrabasic magmatic rock melt-off copper-nickel sulfide deposit, with low sulfide content, and the induced electrical anomaly is relatively weak.

[0018] Figure 5 (The 0-line IP sounding inversion polarizability contour cross-section map of the copper-nickel mining area in Pingran Village, Huapan Province, Laos) is a cross-section map of the IP sounding polarizability contour processed by tomography. The electrical anomaly area effectively shows the distribution area of ​​serpentinite after the weathering and metamorphism of ultrabasic rocks, whil...

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 geophysical prospecting two-dimensional electrical sounding data chromatography inversion processing technology and belongs to the technical field of geological exploration. Under the conditions of the same geoelectricity situation and the same polar distance, underground half-space current lines have the consistent distribution form, for a primary electric field, with the change of a supply current, the electric field strength and the current line density at each position under the ground are changed, but the relative ratio of the electric field strengths or the current line densities between points is not changed; and for a secondary electric field, when the excitation reaches a saturated state, attenuation curve characters are approximate. Different resistivity and polarizability properties are effectively distinguished; the theoretical formula derivation is carried out; sounding data layer-by-layer stripping coefficients of adjacent polar distances are solved; an inversion mathematical model is constructed; and the imitative resistivities, polarizabilities and corresponding depths are obtained. Due to the adoption of the chromatography processing, the influence of topographic relief can be inhibited, the resolution is improved, the multiplicity is reduced, the inversion efficiency is greatly improved, and a result is very close to the real geological condition. The geophysical prospecting two-dimensional electrical sounding data chromatography inversion processing technology is mainly applied to geophysical prospecting data processing interpretation in the field of geological exploration such as exploration of mineral resources, engineering geologic structures, exploration of water resources and the like.

Description

technical field [0001] Geophysical two-dimensional electrical sounding data tomographic inversion processing technology is mainly used in the inversion processing and analysis of geophysical data in middle and deep geological prospecting. Background technique [0002] The prospecting of high-power DC IP method and spectral AC IP method for geophysical prospecting is an important method for finding middle and deep polymetallic ore bodies. The analysis, research, inference and interpretation of the survey data, that is, the inversion processing technology of the data, has always been a major issue in many fields. The focus and difficult issues that geophysicists continue to study and explore deeply. [0003] Previously, there were a variety of data inversion processing methods for electrical measurement data, such as: multiple iteration method, step-by-step recursion method, reflection coefficient method, electromagnetic analogy method and so on. Some of these methods have er...

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): G01V3/38
CPCY02A90/30
Inventor 蔡运胜罗小南
Owner 蔡运胜
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