Sandstone Uranium Prediction via Seismic Dip and Fracture Analysis
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Solution Overview
Problem
Predicting the distribution region of sandstone-type uranium deposits is challenging due to complex geological factors and the blind nature of most deposits, making existing methods inefficient.
Innovation Solution
A method using geological-seismic data to determine a to-be-explored area and target stratum, delineate depression and target regions, analyze seismic data for dip angles and fracture distribution, and identify uranium deposit metallogenic sites based on specific conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional prediction methods are used for sandstone-type uranium deposits, then the prediction process can be completed with existing techniques, but the prediction accuracy is low due to complex geological factors and blind ore characteristics
Solution Approach 1:
The patent segments the complex prediction process into distinct modules: depression region identification, target region identification, dip angle analysis, and fracture distribution analysis. Each module handles specific geological factors independently, making the overall complex problem manageable and improving prediction accuracy through systematic analysis of each segment
Solution Approach 2:
The patent transitions from traditional two-dimensional seismic section analysis to three-dimensional spatial analysis by introducing dip angle measurements and fracture distribution in multiple directions. This dimensional expansion allows comprehensive characterization of geological structures, addressing the complexity of blind ore prediction through multi-dimensional data integration
2Measurement precision
If comprehensive geological analysis is performed to improve prediction accuracy, then more accurate metallogenic sites can be identified, but the exploration time and computational resources increase
Solution Approach 1:
The patent performs preliminary identification of depression regions and target regions using seismic data before conducting detailed dip angle and fracture analysis. By pre-segmenting the area of interest and establishing candidate regions based on basic geological criteria, the method reduces the scope of subsequent detailed analysis, thereby decreasing overall exploration time while maintaining high identification accuracy
Solution Approach 2:
The patent applies different analysis depths and methods to different regions: comprehensive multi-parameter analysis is focused on identified target regions within depression zones, while surrounding areas receive preliminary screening. This localized approach ensures high accuracy for potential metallogenic sites without unnecessarily processing entire exploration areas, optimizing the time-accuracy tradeoff
Data Source
AI summary
A three-dimensional prediction method based on geology-seismology for a favorable metallogenic site of a sandstone-type uranium deposit is provided, including: determining a to-be-explored area and a target stratum in the to-be-explored area; setting a seismic line in the to-be-explored area, so as to acquire seismic data of a profile where the seismic line is located; delineating a depression region and a target region in the profile; determining a dip angle of a stratum in the target region and a dip angle of a stratum underlying the target region according to the seismic data, where the stratum underlying the target region is within the depression region; determining a distribution of fractures in the target region and the depression region according to the seismic data; and delineating a uranium deposit metallogenic site in the target region.