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Multi-dimensional geological background model construction method for optimizing electrical prospecting inversion

A background model, electrical prospecting technology, applied in the field of geological survey

Pending Publication Date: 2020-10-23
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Description
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Problems solved by technology

[0006] The main purpose of the present invention is to solve the problem of selection and model construction of high-quality initial model parameters for electrical prospecting and inversion, and propose a multi-dimensional geological background model construction method

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  • Multi-dimensional geological background model construction method for optimizing electrical prospecting inversion
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  • Multi-dimensional geological background model construction method for optimizing electrical prospecting inversion

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Embodiment

[0040] Those skilled in the art can understand that although the following description involves many technical details related to the embodiments of the present invention, this is only an example for illustrating the principle of the present invention, and does not imply any limitation. The present invention can be applied to occasions other than the technical details listed below, as long as it does not deviate from the principle and spirit of the present invention.

[0041] In addition, in order to avoid making the description in this manual limited to redundant, in the description in this manual, some technical details that can be obtained in the existing technical documents may be omitted, simplified, modified, etc. understandable to human beings, and this does not affect the adequacy of the disclosure of this specification.

[0042] It should be noted that this description is only exemplary. refer to Figure 1-Figure 6 , specify that the implementation process of the pr...

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Abstract

The invention relates to a multi-dimensional geological background model construction method for optimizing electrical prospecting inversion. According to the method, electrical stratification is carried out on a stratum, and a longitudinal geological background model with layer resistivity, layer thickness and layer interface parameters at a drilled hole is constructed; geological background model grid units are divided by taking the coordinate positions of the drill hole and adjacent drill holes in an electrical prospecting area as base points; and a weight coefficient in each direction is calculated according to distance between unknown points and surrounding base points so as to solve parameters such as layer resistivity, layer thickness, layer interface and the like at each unknown point, establish a corresponding geological background model, and form a geological background model with a single-point set, a grid unit set and a whole measurement area which represent the continuouschange characteristics of a sedimentary stratum.

Description

technical field [0001] The invention relates to a method for constructing a geological background model, which belongs to the technical field of geological survey, in particular to a method for constructing a multi-dimensional geological background model for optimizing electrical prospecting and inversion. Background technique [0002] Electrical prospecting is based on the differences in electrical conductivity, magnetic conductivity, and dielectric properties of various rocks or ore bodies in the earth's crust, through the observation and research of the spatial distribution and time characteristics of natural or artificial electric and electromagnetic fields, etc., to find different Types of useful mineral deposits and geophysical exploration methods for identifying geological structures and solving geological problems. Commonly used exploration methods in electrical prospecting include resistivity method, electromagnetic induction method, natural electric field method, c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/38G01V3/08
CPCG01V3/38G01V3/08
Inventor 侯彦威高小伟姚伟华姜涛庞少东苏超郭恒马炳镇
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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