Storage capacity calculation method, device and equipment of aquifer gas storage and storage medium

The invention discloses a reservoir capacity calculation method, device and equipment of an aquifer gas storage and a storage medium, the method is used for the gas storage with the aquifer water body type being an open water body, and the method comprises the steps that geological data and test data of an underground water layer are acquired, and the limit pore volume and limit reservoir capacity of the aquifer type gas storage are determined; obtaining water body property data of the aquifer and constructing a first function relationship group of a gas-water interface of the gas storage along with the pressure change of the aquifer; acquiring a second function relationship group of the two-phase region of the relative permeability curve along with the change of the displacement round; the gas storage pore volume corresponding to the irreducible water saturation degree and the movable gas pore volume corresponding to the movable gas saturation degree in different displacement rounds are obtained; according t