Porous rock digital core reconstruction method based on mixture of process method and mathematical morphology method

The invention provides a porous rock digital core reconstruction method based on the mixture of a process method and a mathematical morphological method, which comprises the following steps: constructing a particle deposition model by simulating a sedimentary rock formation process based on the process method; performing mathematical morphology algorithm processing on different pore structure characteristics in the particle deposition model to form a pore structure digital core model; and performing cementing simulation treatment on a preset position in the pore structure digital core model, and gradually increasing the thickness of a cement at the cementing position to form a final digital core model. The modeling process is simple and convenient, the modeling speed is higher, and time is saved; according to the modeling method, a large number of digital core models with different pore structure characteristics can be constructed by controlling mathematical morphology algorithm parameters according to resear