Subtle volume elements attribute assignment method capable of considering geological structure condition constraint

A technology of geological structure and attribute assignment, applied in seismology, geophysical measurement, climate sustainability, etc., to achieve the effect of ensuring consistency

Inactive Publication Date: 2017-05-31
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

However, how to achieve the consistency between the attribute model and the geological structure model, so that the obtained attribute model can reflect the constraints of structural features, expert knowledge, and geological semantics is a difficult problem

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  • Subtle volume elements attribute assignment method capable of considering geological structure condition constraint
  • Subtle volume elements attribute assignment method capable of considering geological structure condition constraint
  • Subtle volume elements attribute assignment method capable of considering geological structure condition constraint

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with drawings and embodiments.

[0043] refer to figure 1 , the present invention provides a method for assigning fine voxel attributes in consideration of geological structure constraints, comprising the following steps:

[0044] (1) For the fine voxel model that has been subdivided by the geological structure model, load the longitudinal constraints: such as figure 2 As shown, the n+1 grid surfaces corresponding to the n-layer isochronous strata of the fine voxel model are used as longitudinal constraints;

[0045] (2) Make the loop control variable i=1;

[0046] (3) Obtain the top grid surface s corresponding to the i-th isochronous strata top and bottom grid faces bot ;

[0047] (4) Traverse all voxels and select the distribution on the top grid surface s top and bottom grid faces bot All voxels between and store them in the object set voxels;

[0048] (5) Loading horizontal constraints: r...

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Abstract

The invention provides a subtle volume elements attribute assignment method capable of considering geological structure condition constraint. At the basic of the geological subtle body meta-model, the valuation method fully considers the constraints of geological precipitation and geological structure and relevant specialist knowledge. In vertical, the method takes the geological semantics and isochronous stratigraphic framework as the restraint to solve the different layers subtle bodies in turn. In horizontal, the method takes the sedimentary facies boundary and geological boundary and river boundary as the restraint to divide the plane into different areas and provide the basic attributes to every area and then apply the different interpolating methods accommodated to the basic attributes to implement the attribute assignment to the volume elements in the different areas. The regionalizing volume elements attribute assignment method implements semantic division to geological space and thereof the generated geological attribute model represents the effect geological construction condition to the spatial distribution feature of the heterogeneous attribute field and ensures the geological structure model and subtle volume elements attribute model' consistency in the geological semantic level.

Description

technical field [0001] The invention relates to a method for assigning fine voxel attributes in consideration of geological structure constraints, and belongs to the fields of geological information science and three-dimensional geological modeling. Background technique [0002] The attribute model of geological body is the basis for visual expression and quantitative evaluation and analysis of the heterogeneous attribute field inside the geological body. According to different research purposes and application requirements, 3D geological modeling can be divided into 3D geological structure modeling and geological attribute modeling. 3D geological structure modeling mainly focuses on the spatial form construction of strata, rock masses, sedimentary facies, special geological structures, etc., aiming to truly describe the spatial distribution of underground geological structures; and the purpose of geological attribute modeling is to finely describe geological Spatial distri...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28G06T17/05
CPCG06T17/05G01V1/282G01V2210/66Y02A90/10
Inventor 陈麒玉刘刚蒋亚男姚重陶坤燏何忆李新川张志庭
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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