Experimental device for correcting late time of gas logging

The invention relates to an experimental device for correcting late time of gas logging. The experimental device comprises a drilling fluid tank, a shaft, a hydrocarbon gas storage tank, a fluorescent fluid tank and a data processor, after the shaft is fixed, the two ends form a height difference, the drilling fluid box is connected with the lower end of the shaft through a pipeline, the hydrocarbon gas storage tank and the fluorescent fluid box are connected with the pipeline through a gas injection pipe and a liquid injection pipe respectively, conveying pumps are installed on the pipeline, the gas injection pipe and the liquid injection pipe, an outlet is formed in the higher end of the shaft, and the liquid injection pipe is connected with the outlet. And an infrared laser concentration monitor and a fluorescence analyzer are arranged at the outlet, and are both in circuit connection with the data processor. According to the experimental device for correcting the late time of gas logging, the time of diss