Shallow sea phase delta reservoir training image generation method and system, medium and equipment

The invention discloses a shallow sea facies delta reservoir training image generation method and system, a medium and equipment. The method comprises the following steps: constructing an initial three-dimensional grid model of a single-period shallow sea facies delta reservoir training image; sequentially constructing a delta plain sedimentary facies, a pre-deposited sand body sedimentary facies and an argillaceous interlayer sedimentary facies in the initial three-dimensional grid model to obtain a single-period three-dimensional sedimentary model; superposing the two single-period three-dimensional deposition models to obtain a multi-period three-dimensional deposition model; constructing a river channel sedimentary facies in the delta plain sedimentary facies of the multi-stage three-dimensional sedimentary model to obtain a shallow sea facies delta reservoir training image; according to the method, the three-dimensional training image can be generated, and the space structure and variability of the under