Geological structure three-dimensional modeling method and system based on fault generation time sequence

Abstract

The invention belongs to the technical field of three-dimensional geologic modeling, and discloses a geologic structure three-dimensional modeling method and system based on a fault generation time sequence, and the method comprises the steps: calculating a bounding box of a fault surface model and a geologic model, and judging a geologic model data object; carrying out bounding box collision detection on the fault surface model and the geologic model, and determining the geologic model with intersected fault surfaces; taking one geologic model from the geologic models with the intersected fault planes to perform cutting operation with the fault planes, and calculating intersection points to obtain cutting intersection lines; subdividing triangles on two sides of a fault surface cutting intersection line, and determining a fault hanging wall boundary and a fault footwall boundary; reading fault attribute information, and moving the boundaries of the hanging wall and the footwall; judging whether new revealed data exists or not; dynamically optimizing the cut geological model; and judging whether a geologic model intersected with the fault surface exists in the geologic models intersected with the fault surface or not. According to the method, the three-dimensional model is dynamically optimized by fully utilizing the revealed data, so that the geological model is matched with the revealed data, and accurate modeling of tectonic geology is achieved.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional geological modeling, and in particular relates to a method and system for three-dimensional modeling of geological structures based on fault generation time series. Background technique [0002] At present, the closest existing technology: the three-dimensional modeling technology of geological structure has important theoretical significance and practical value for analyzing the structure of geological faults and describing the laws of motion. Scholars at home and abroad have paid more attention to the theory and method of 3D modeling and produced a lot of results, but most of the research results are for single-layer geological bodies, and the modeling technology for complex geological structures such as multi-coal rock layers and faults is still in the exploration stage. and research phase. The bottleneck of research on modeling technology for complex geological bodies with faults ma...

AI Technical Summary

Problems solved by technology

[0004] To sum up, the problems existing in the prior art are: (1) The geological model established by the different detection data of the current fault modeling method has a large error, and it is difficult to reflect the fracture characteristics and distribution of the fault

[0005] (2) The current fault modeling method contains a large amount of information contained in complex faults, which has not been fully developed and utilized. It is only in the processing of single-layer local data, and cannot handle the geological structures such as multi-coal strata and faults in the mine well. coupling problem

[0006] Difficulty in solving the above technical problems: The bottleneck of modeling technology research on complex geological bodies with faults mainly focuses on the accurate simulation and expression of fault structures, and the traditional spatial interpolation method cannot simulate complex geological structures well

Images