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Borehole core alteration information recording method

A technology of alteration and core, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of low economic applicability, large and expensive hyperspectral core measurement equipment, etc., and achieve convenient operation, easy construction and secondary Effects of Utilization, Ease of Analysis and Utilization

Inactive Publication Date: 2019-08-16
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for cataloging drilling core alteration information, which is used to solve the problem of large and expensive hyperspectral core measurement equipment in the prior art, low economic applicability, and the traditional hyperspectral analysis and identification technology requires secondary data conversion processing. Technical issues exploited by geologists

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  • Borehole core alteration information recording method
  • Borehole core alteration information recording method
  • Borehole core alteration information recording method

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Embodiment Construction

[0028] The purpose of the present invention is to take advantage of the characteristics of the portable spectrometer, which is convenient to use and high in measurement efficiency, and the advantages of hyperspectral data in the identification of alteration information. Spectral feature absorption depth is used to characterize the degree of alteration development, quickly obtain the distribution characteristics of alteration information in the entire borehole, and realize the cataloging of borehole alteration information.

[0029] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0030] like Figures 1 to 3 As shown, a method for cataloging drilling core alteration information includes the following steps:

[0031] Step 1: Measure the reflectance spectrum of the drilled core; use the built-in light source probe measurement method of the portable spectrometer to obtain the reflectance spectral data of the drilled core t...

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Abstract

The invention belongs to the technical field of geoscience, and particularly relates to a borehole core alteration information recording method, which comprises the following steps of: 1, performing borehole core reflectivity spectral measurement; step 2, resampling spectral data; step 3, removing an envelope line; 4, calculating the absorption depth; step 5, carrying out data logging; step 6, carrying out visualization of a recording result. The hyperspectral technology advantages are utilized, the borehole core spectral data are rapidly obtained based on the portable spectrometer, and the borehole core alteration information is expressed in a semi-quantitative mode by calculating the alteration type main diagnosis spectral characteristic absorption depth.

Description

technical field [0001] The invention belongs to the technical field of earth sciences, and in particular relates to a method for cataloging drilling core alteration information. Background technique [0002] The alteration of surrounding rock is one of the important signs of ore prospecting, and the identification and recording of alteration information is a very important content in the cataloging of drilling cores by geologists. The traditional recording of core alteration information is mainly realized through the core observation of geological recorders, which obviously has certain subjective uncertainties. To identify and distinguish ground features, dozens of minerals have been identified, including many types of altered minerals. However, in the field of domestic geological exploration, core hyperspectral measurement and application are still in their infancy. The site conditions of drilling projects in the field of domestic geological exploration are different. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06F2218/08
Inventor 张川邱骏挺叶发旺王建刚
Owner BEIJING RES INST OF URANIUM GEOLOGY
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