Three-dimensional resistivity sounding application method based on high-density electrical method Wenner device

A technology of high-density resistivity and high-density electrical method, which is applied in the field of geological exploration, can solve the problem of limited effective data coverage and achieve the effects of increasing detection depth, reducing costs, and accurate inversion results

Active Publication Date: 2019-11-19
李忠平
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Problems solved by technology

Other permutations are rarely used because of less effective data coverage

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  • Three-dimensional resistivity sounding application method based on high-density electrical method Wenner device
  • Three-dimensional resistivity sounding application method based on high-density electrical method Wenner device
  • Three-dimensional resistivity sounding application method based on high-density electrical method Wenner device

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Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. 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.

[0055] The three-dimensional resistivity bathymetric data format of the high-density electrical Wenner device is similar to the non-uniform surveying network method, and there is no need to follow the requirements of the high-density electrical Wenner or equidistant quadrupole arrangement. As long as the relative positions or coordinates of the electrodes are determined, the The data format of non-uniform measuring network can be formed for 3D inversion, and the electric sounding sections can be arranged equidistantly...

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Abstract

The invention discloses a three-dimensional resistivity sounding application method based on a high-density electrical method Wenner device. According to the method, a three-dimensional resistivity data body is established through a high-density 2D resistivity instrument Wenner device and a high grid-density large-electrode pitch electrical sounding section; electrodes are arranged and converted into a symmetric quadrupole device; a non-uniform measurement network is constructed; and three-dimensional inversion is performed through the least square method. With such an observation method adopted, detection depth is increased, cost is reduced, the spatial characteristics of a geologic body are effectively reflected, and detailed information is provided for borehole layout.

Description

technical field [0001] The invention relates to the technical field of geological exploration, in particular to a three-dimensional resistivity sounding application method based on a high-density electrical Wenner device. Background technique [0002] Three-dimensional exploration of high-resolution geology and mineral resources is the goal of the development of electrical methods. Collecting high-resolution electrical three-dimensional observation data and carrying out three-dimensional inversion are the keys to the three-dimensional fine structure detection of resistivity in the survey area. At present, the three-dimensional observation method of resistivity bathymetry is an important aspect of research. It is not only related to the efficiency and cost of field observation, but also related to the resolution and inversion effect of data. [0003] Existing data show that the commonly used 3D inversion of resistivity can only meet the requirements of shallow 3D exploration,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/38
CPCG01V3/38
Inventor 李忠平
Owner 李忠平
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