Sandstone type uranium ore control fracture identification method and system based on three-dimensional seismic data

The invention relates to a sandstone type uranium ore control fracture identification method and system based on three-dimensional seismic data. The method comprises the following steps: acquiring three-dimensional seismic data and geological data of a to-be-explored area; determining the layer penetrating performance of each fault and screening out a target fault; according to the upper and lower wall depth values, upper and lower wall thickness and stratum fault displacement are determined; determining a growth index corresponding to each layer section of the target fault according to the upper and lower wall thicknesses; establishing a fault displacement burial depth curve and a growth index overall law diagram according to the stratum fault displacement and the growth index; performing first fracture system division according to the crossing property of the target fault, and performing second fracture system division according to the fault displacement burial depth curve and the growth index overall law d