Method, device, medium and equipment for predicting compact thin reservoir

The invention discloses a compact thin reservoir prediction method, device, medium and equipment, and the method comprises the steps: obtaining a longitudinal wave impedance parameter and a lithofacies category curve based on logging information; obtaining a probability density function based on the longitudinal wave impedance parameter and the lithofacies category curve; obtaining a longitudinal wave impedance data body based on the seismic data; based on the longitudinal wave impedance data volume and the probability density function, obtaining a lithofacies probability data volume; and taking the probability density function and the lithofacies probability data volume as trend constraint conditions, and obtaining a longitudinal wave impedance inversion data volume and a lithofacies inversion data volume through random inversion. According to the method, the seismic lithofacies bodies are applied to random seismic inversion, probability distribution of different lithofacies bodies is predicted on the basis