Temperature-variable pressure-variable water-wet maintenance testing device for cement stone of thermal production well

The invention provides a variable-temperature variable-pressure water-wet maintenance testing device for cement stone of a thermal production well. The maintenance testing device comprises a maintenance loading device, a temperature control device and a humidity control device, and the temperature control device and the humidity control device are respectively connected with the maintenance loading device. And the curing loading device comprises a curing kettle, a loading column arranged on the wall of the curing kettle and a water vapor inlet/outlet. A heat preservation layer and a temperature control pipeline are sequentially arranged on the inner side of the wall of the curing kettle from outside to inside. According to the maintenance testing device disclosed by the invention, the process from a fluid state to a curing process of a cement sample is completed in the same container, and a true triaxial in-situ loading experiment under high temperature, high pressure and high humidity can be further carried