Pore-throat connection relation identification method and device, computer equipment, and storage medium

The invention provides a pore-throat connection relation identification method and device, computer equipment, and a storage medium. The method comprises the following steps: dividing a pore-throat combined image of a digital core into N single-pore images and M single-throat images, and sequentially carrying out external expansion, shielding, intersection operation, and connected body identification of throats in the M single-throat images, so as to carry out expansion processing on a throat in the single-throat images and to enable the single-throat images to comprise a partial image of a pore connected with the throat; performing intersection operation on the expanded images and the single-pore images so as to obtain a connection relationship between a throat and a pore in the digital rock core, and thereby achieving an effect of identifying a pore-throat connection relationship of a digital rock core. The method can quickly and accurately calculate a connection relationship between a pore and a throat of