Three-dimensional geologic model-based geologic characterization condition evaluation method and system

Abstract

The invention relates to a three-dimensional geologic model-based geologic characterization condition evaluation method and a three-dimensional geologic model-based geologic representation condition evaluation system. The method comprises the following steps: acquiring stratum and structure original measurement data and generating a three-dimensional geological measurement model; disturbing the stratum and structure original measurement data to generate a three-dimensional disturbance model; converting the three-dimensional geologic model into a three-dimensional ore block model, expanding the three-dimensional ore block model into a one-dimensional array according to coordinates, and forming a geologic model evaluation data set; processing the three-dimensional ore block model by utilizing a true value discovery algorithm according to the geological model evaluation data set, determining the uncertainty of the three-dimensional ore block model, and determining the true value point of each information source and the weight of each information source in the uncertainty process of the three-dimensional ore block model; and performing qualitative evaluation and quantitative evaluation on the three-dimensional ore block model based on the true value point of each information source and the weight of each information source, and constructing a three-dimensional geological model for quantitative evaluation. The method can accurately evaluate geological characterization conditions and accurately predict mineral resources.

Description

technical field [0001] The invention relates to the field of mineral resource prediction, in particular to an evaluation method and system for geological representation based on a three-dimensional geological model. Background technique [0002] According to statistics, in 2013 China's consumption of 21 kinds of minerals ranked first in the world, accounting for about 1 / 3 of the total global consumption. In the next 10 to 15 years, China's rigid demand for mineral resources will continue, peak demand for bulk metal minerals will come one after another, and the degree of dependence on foreign countries will rise sharply, seriously exceeding the national resource security warning line. If the proven resources and reserves cannot be greatly increased in the next 10 years, almost all bulk metal minerals will face a dangerous situation of depletion. The situation is critical and the prospects are worrying. It has become an urgent, arduous and long-term major strategic task for C...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for evaluating geological representations based on a three-dimensional geological model to solve the problem of difficult identification and acquisition of large-depth geological data and the complexity of objective geological structures in the process of building a three-dimensional geological model. , the subjectivity of geological modeling personnel and human errors, etc., the 3D geological model inevitably has uncertainty and lack of practicability, resulting in poor accuracy of geological representation and inability to accurately predict mineral resources.

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