Pressure-bearing well water injection test device

The invention discloses a pressure-bearing well water injection test device. The device comprises a water storage box and a simulation box with a horizontal water-impermeable bottom plate, wherein a fan-shaped groove and a water drainage cavity communicated with the arc water-pervious wall of the fan-shaped groove are formed in the simulation box, the central angle of the cross section of the fan-shaped groove is at least 30 degrees, the fan-shaped groove is partitioned off into a pressure-bearing water injection well and a simulation cavity with a water containing layer by an arc water-previous well wall which is located in the fan-shaped groove and is concentric with the arc water-previous wall, a fixed waterhead overflow box at the end, with the pressure-bearing water injection well, of the simulation box is communicated with the water storage box and the pressure-bearing water injection well through pipelines, a water drainage box at the position of the water drainage cavity of the simulation box is communicated with the water storage box and the water drainage cavity through pipelines, a tracer injection water box is installed at the position, close to the water injection well and opposite to the simulation cavity, of the top of the simulation box, a tracer box is installed on the top of the tracer injection water box, and at least five sets of pressure measuring pipes are vertically installed on the simulation cavity wall at equal intervals. Through the device, the process of stably injecting water into the pressure-bearing well, the characteristics of movement that water in the well flows to the pressure-bearing water containing layer, and the waterhead distribution law can be visually learnt about, and relevant tests and parameter measurement are performed.