High-pressure medium seismic wave propagation simulation method

The invention relates to a high-pressure medium seismic wave propagation simulation method, comprising the following steps: 1) establishing a novel acoustic elasticity formula combined with pore structural parameters; 2) calculating equivalent elastic moduli and elastic wave velocities in different pressure states by utilizing the novel acoustic elasticity formula; 3) extracting structured data, namely autocorrelation length, among particles inside rocks; 4) specific to each pressure state, taking the equivalent elastic moduli obtained by the step 2) as background values of rock medium elasticmoduli respectively, and according the autocorrelation length extracted in the step 3), by combining an autocorrelation function, adding elastic modulus disturbance in the background values, and building a rock numerical value model in each pressure state; and 5) performing finite element seismic wave field simulation in each rock numerical value model, and extracting a scattering attenuation Qc-1 value of a reservoir sp