Water-oil displacement simulation device

The invention discloses a water-oil displacement simulation device, and belongs to the technical field of oil and gas layer exploitation. The water-oil displacement simulation device comprises a pump1, a slab model 2, a metering container 3, a negative pressure controller 4, a base 5, a bracket 6 and an ultraviolet light source 7. The ultraviolet light source 7 is positioned above the slab model2; the slab model 2 comprises a core 201, an anti-seepage layer 202 and a pouring layer 203, wherein the anti-seepage layer 202 is arranged on the outer layer of the core 201, and the pouring layer 203 is arranged on the outer layer of the anti-seepage layer 202; the slab model 2 is provided with an injection through hole and an extraction through hole, and the injection through hole and the extraction through hole penetrate through the core 201; a sealing plug is arranged at the upper end of the metering container 3, a first through hole is formed in the sealing plug, and a second through hole is formed in the side wa