Physical simulation experiment for mining thickened oil and asphalt reservoir through in-situ combustion

The invention discloses a physical simulation experiment for mining thickened oil and asphalt reservoir through in-situ combustion. A nitrogen tank and an air tank are connected with a gas filter through pipelines. The gas filter is connected with a first piston container which is further connected with a water storage tank and a steam generator. The steam generator is further connected with a second piston container. The steam generator is connected with a combustion pipe assembly which is connected with a back-pressure valve. The back-pressure valve is connected with a first separator. The first separator is connected with a condenser with a valve K. The condenser is connected with an acid picking tank, the other end of the acid picking tank is connected with a calcium sulfate drying tank, the other end of the calcium sulfate drying tank is connected with an oxygen detector, and the oxygen detector is connected with a gas chromatograph. A mass flowmeter, a first pressure sensor, a second pressure sensor and a wet-type gas flowmeter are connected with a data signal converter which is connected with a computer. By means of the physical simulation experiment for mining thickened oil and asphalt reservoir through in-situ combustion, the stratum ignition temperature, the temperature generated before and after front edge fireflood is conducted, the pressure distribution rule and the change rule of the components and the physical properties of rock before and after the fireflood is conducted can be observed.