A deep alteration mineral three-dimensional modeling method

A technology of altered minerals and 3D modeling, applied in the field of 3D modeling of deep altered minerals, can solve problems such as difficult quantification, partiality of drilling interpretation, and incomplete measurement methods, and achieve high modeling accuracy and extraction results. subtle effects

Active Publication Date: 2019-06-25
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

However, at present, core hyperspectral scanning mostly adopts a point-by-point measurement method, that is, obtaining spectral curves one by one, and discriminating the mineral type represented by each spectral curve through spectral analysis. This measurement method is not comprehensive, and Biased in borehole interpretation and not easy to quantify

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  • A deep alteration mineral three-dimensional modeling method

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Embodiment Construction

[0032] A three-dimensional modeling method for deep altered minerals of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0033] Such as figure 1 As shown, a method for three-dimensional modeling of deep altered minerals in this embodiment includes the following steps:

[0034] Step 1, hyperspectral scanning of borehole core imaging

[0035] For the area to be modeled, a certain number of boreholes are selected according to the prior geological background (lithology, stratum, structure, etc.) and the layout of the drilling engineering. There are choices, and there are choices for the relatively near and far sections of the structural belt as much as possible. Under stable lighting conditions, the ground imaging spectrometer is used to acquire core imaging hyperspectral data through the core scanning platform. During the data scanning process, the light conditions were kept stable, and the standard plate was scanned s...

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Abstract

The invention belongs to the technical field of geoscience, and particularly relates to a deep alteration mineral three-dimensional modeling method. The method comprises the following steps: step 1, carrying out hyperspectral scanning on a drilled core image; 2, preprocessing the borehole core imaging hyperspectral data; Step 3, performing rock core alteration mineral mapping; 4, calculating the relative content of the rock core alteration minerals of the unit section; 5, displaying the relative content of the borehole alteration minerals in a three-dimensional mode; 6, carrying out parallel section projection; Step 7, carrying out three-dimensional space vectorization; And step 8, carrying out three-dimensional space interpolation on the alteration minerals. According to the method, the deep alteration mineral three-dimensional solid model is established, the deep drilling rock core alteration mineral extraction result is fine, objective and accurate, the modeling precision is high, and the method has important practical application value for deep geological research and prospecting exploration.

Description

technical field [0001] The invention belongs to the technical field of earth sciences, and in particular relates to a three-dimensional modeling method of deep altered minerals. Background technique [0002] Deep exploration is a hot issue in the field of geoscience science and technology. 3D geological modeling is an effective means to study deep geological features. It can help geologists reconstruct the structure of various deep geological objects, intuitively understand the three-dimensional spatial distribution of geological bodies, and analyze the relationship between various geological phenomena, so as to better Effectively carry out geological research and prospecting prediction. [0003] Alteration is one of the important mineralization elements. Deep alteration modeling has important reference value for the study of deep alteration zoning and its spatial characteristics, inversion of deep geological environment, and guidance of ore prospecting and exploration. A...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05G01N21/25
CPCY02A90/30
Inventor 张川叶发旺邱骏挺孟树
Owner BEIJING RES INST OF URANIUM GEOLOGY
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