A method and system for evaluating geological representation based on a three-dimensional geological model

Abstract

The invention relates to a method and system for evaluating geological representation conditions based on a three-dimensional geological model. The method includes: acquiring stratum and structure original measurement data and generating a three-dimensional geological survey model; perturbing the stratum and structure original survey data to generate a three-dimensional perturbation model; converting the three-dimensional geological model into a three-dimensional ore block model, and converting the three-dimensional ore block model according to The coordinates are expanded into a one-dimensional array to form a geological model evaluation data set; according to the geological model evaluation data set, the 3D ore block model is processed by using the truth discovery algorithm to determine the uncertainty of the 3D ore block model and determine the The true value point of each information source and the weight of each information source in the uncertainty process; based on the true value point of each information source and the weight of each information source, the three-dimensional ore block model is qualitatively and quantitatively evaluated, Construct 3D geological models for quantitative evaluation. The invention can accurately evaluate geological representation 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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