CN-121564263-B - Dynamic modeling method of three-dimensional model of geological structure

CN121564263BCN 121564263 BCN121564263 BCN 121564263BCN-121564263-B

Abstract

The invention relates to the technical field of three-dimensional modeling, in particular to a dynamic modeling method of a three-dimensional model of a geological structure. The method comprises the steps of obtaining multi-source data, preprocessing, introducing a voxel semantic fusion algorithm based on variation optimization, mapping the preprocessed multi-source data into a target three-dimensional space grid after semantic information is extracted, obtaining an optimal semantic fusion vector, generating a standard voxel data pool based on the optimal semantic fusion vector, constructing a geological structure three-dimensional model, monitoring data change, calculating a new data point position, combining the standard voxel data pool, obtaining a space update area, modeling the space update area, realizing model update, and optimizing the continuity of the boundary after modeling of the space update area is completed. The method solves the problems that the multi-source geological data cannot be directly used for structure construction and semantic fusion of the three-dimensional model, dynamic response to newly added data is lacking, and geometric discontinuity and construction logic discontinuity exist at the boundary.

Inventors

NIU BO
ZHU JIANYONG
MIAO HAIBING
SUN YAOCHAO
NING SHENGYUAN
ZHANG TIANZHI
GU JIANJUN
GONG WENTAO
ZHANG WEIDONG
ZHU XUDONG

Assignees

内蒙古山金地质矿产勘查有限公司

Dates

Publication Date: 20260508
Application Date: 20251128

Claims (9)

1. A dynamic modeling method of a three-dimensional model of a geological structure is characterized by comprising the following steps: s1, acquiring multi-source data and preprocessing the multi-source data to obtain preprocessed multi-source data, introducing a voxel semantic fusion algorithm based on variation optimization, and mapping the preprocessed multi-source data into a target three-dimensional space grid after extracting semantic information to obtain an optimal semantic fusion vector; s2, monitoring data change, processing newly added data points through the voxel semantic fusion algorithm based on variation optimization to obtain newly added data point positions, combining a standard voxel data pool to obtain a space update area, and modeling the space update area to realize model update; s3, after modeling of the space updating area is completed, constructing a tensor field in the boundary transition area, obtaining weight factors of boundary points, constructing a Bessel interpolation curved surface based on the weight factors of the boundary points, and optimizing the continuity of the boundary to realize dynamic modeling of the geological structure three-dimensional model.
2. The method for dynamic modeling of a three-dimensional model of a geologic structure according to claim 1, wherein S1 specifically comprises: In the implementation process of a voxel semantic fusion algorithm based on variation optimization, a semantic vector is constructed based on preprocessed multi-source data, a scaling matrix and a rotation matrix are introduced, the semantic vector is mapped to voxel units of a target three-dimensional space grid, and coordinates of data points in a standard space coordinate system are obtained, wherein the target three-dimensional space grid is a three-dimensional grid semantic space generated by taking the voxel units as basic modeling units.
3. The method for dynamic modeling of a three-dimensional model of a geologic structure according to claim 2, wherein S1 specifically comprises: In the implementation process of the voxel semantic fusion algorithm based on variation optimization, a semantic consistency item and a spatial continuity regular item are generated based on coordinates of data points in a standard spatial coordinate system, and a consistency energy function of preprocessed multi-source data in a semantic dimension is constructed.
4. A method for dynamic modeling of a three-dimensional model of a geologic structure according to claim 3, wherein S1 specifically comprises: In the implementation process of the voxel semantic fusion algorithm based on variation optimization, a consistent energy function is optimized to obtain an optimal semantic fusion vector, the optimal semantic fusion vector is bound with a corresponding space coordinate, the optimal semantic fusion vector is uniformly stored as a three-dimensional voxel unit with a semantic label, and a standard voxel data pool is constructed and formed.
5. The method for dynamic modeling of a three-dimensional model of a geologic structure according to claim 1, wherein S2 specifically comprises: And introducing a semantic confidence factor of the voxel, and calculating the spatial influence radius of the newly added data point based on the spatial relation between the position of the newly added data point and the existing point set in the standard voxel data pool.
6. The method for dynamic modeling of a three-dimensional model of geologic structure according to claim 5, wherein S2 specifically comprises: The method comprises the steps of forming a set of all voxel points with the distance smaller than the space influence radius from a newly added data point and taking the set as a space update area needing to execute local reconstruction, selecting a control point based on the space update area, taking the control point as a kernel function center to construct a three-dimensional response function, evaluating the three-dimensional response function on the whole space update area, determining a structure boundary and completing modeling of the space update area.
7. The method for dynamic modeling of a three-dimensional model of a geologic structure according to claim 1, wherein S3 specifically comprises: And introducing geological attribute joint vectors of boundary points, constructing a tensor field, and defining an evolution tensor.
8. The method for dynamic modeling of a three-dimensional model of geologic structure according to claim 7, wherein S3 specifically comprises: Based on the evolution tensor, introducing a time sensitive factor, and calculating a weight factor of the boundary point by combining the inclination angle of the geological structure.
9. The method for dynamic modeling of a three-dimensional model of a geologic structure according to claim 8, wherein S3 specifically comprises: Based on the weight factors of the boundary points, calculating the control weights of the Bessel control points, taking the control weights of the Bessel control points as input, constructing a Bessel interpolation curved surface on the boundary surface, and dynamically updating the geological structure three-dimensional model.

Description

Dynamic modeling method of three-dimensional model of geological structure Technical Field The invention relates to the technical field of three-dimensional modeling, in particular to a dynamic modeling method of a three-dimensional model of a geological structure. Background At present, three-dimensional geologic modeling is used as a key support technology in a plurality of application fields such as geologic investigation, resource investigation, underground engineering planning, risk assessment and the like, and is characterized in that a space model with real geologic structure characteristics is constructed by integrating various data such as drilling, earthquake, remote sensing, geologic catalog and the like. However, most of the existing modeling techniques rely on manual interpretation and static modeling processes, so that the demands of continuous updating of geological data, frequent change of structure and the like are difficult to meet, firstly, the geological data has strong isomerism, different data sources have differences in terms of a space coordinate system, data precision, semantic definition and the like, the traditional modeling platform usually merges the data through manual conversion and limited rules, so that the data fusion efficiency is low, the semantic consistency is poor, the model quality is further influenced, secondly, the existing modeling method generally adopts a global reconstruction mode, namely, the whole model is recalculated when the data is changed, the consumption of computing resources is high, the method is also not suitable for the demands of quick decision and real-time modeling in actual engineering, especially in the drilling construction process, the newly-increased data is frequent, the model needs quick local response, the traditional method cannot meet the demands of timeliness and flexibility of dynamic modeling, thirdly, after the model construction is completed, if new data is added in a later period or local area adjustment is carried out, geometrical mutation, discontinuous boundaries or rock mutation bands are often formed at the connection of the new model, the application reliability of the model in engineering is seriously influenced, and finally, the existing method lacks the support mechanism for the continuous modeling and the geological interpretation and the geometrical interpretation process, the geometrical interpretation process cannot be evolved from the ground, but the accuracy of the geological interpretation process is high, and the accuracy of the model is not enough. In summary, the conventional geologic structure model construction method also has the technical problems that multi-source geologic data cannot be directly used for structure construction and semantic fusion of a three-dimensional model, dynamic response to newly added data is lacking, and geometric discontinuity and structural logic discontinuity exist at boundaries. Disclosure of Invention The invention provides a dynamic modeling method of a three-dimensional model of a geological structure, which aims to solve the technical problems that multi-source geological data cannot be directly used for structural construction and semantic fusion of the three-dimensional model, dynamic response to newly added data is lacking, and geometric discontinuity and structural logic discontinuity exist at boundaries. The invention relates to a dynamic modeling method of a three-dimensional model of a geological structure, which concretely comprises the following technical scheme: a dynamic modeling method of a three-dimensional model of a geological structure comprises the following steps: s1, acquiring multi-source data and preprocessing the multi-source data to obtain preprocessed multi-source data, introducing a voxel semantic fusion algorithm based on variation optimization, and mapping the preprocessed multi-source data into a target three-dimensional space grid after extracting semantic information to obtain an optimal semantic fusion vector; s2, monitoring data change, processing newly added data points through the voxel semantic fusion algorithm based on variation optimization to obtain newly added data point positions, combining a standard voxel data pool to obtain a space update area, and modeling the space update area to realize model update; s3, after modeling of the space updating area is completed, constructing a tensor field in the boundary transition area, obtaining weight factors of boundary points, constructing a Bessel interpolation curved surface based on the weight factors of the boundary points, and optimizing the continuity of the boundary to realize dynamic modeling of the geological structure three-dimensional model. Preferably, the S1 specifically includes: In the implementation process of a voxel semantic fusion algorithm based on variation optimization, a semantic vector is constructed based on preprocessed multi-source data, a scaling matrix and a rotat