Method for identifying true or false oil and gas show through three-dimensional quantitative fluorescence

A method for identifying true or false oil and gas show through three-dimensional quantitative fluorescence comprises the following steps: 1, establishing a three-dimensional quantitative fluorescence spectrum database of a standard oil sample and a three-dimensional quantitative fluorescence spectrum database of different drilling fluid system common additives; 2, collecting a sample to be identified, and analyzing to obtain the three-dimensional quantitative fluorescence spectra, of the sample to be identified; 3, going to step 4 if spectrum characteristic abnormality appears in the three-dimensional quantitative fluorescence spectrum of the sample to be identified, and returning to step 2 if not; and 4, comparing the three dimensional quantitative fluorescence spectrum of the sample to be identified with the three-dimensional quantitative fluorescence spectrum database of the standard oil sample, determining as true oil and gas show if the spectrum characteristic abnormality of the sample to be identified is the fluorescence characteristic of the standard oil sample, and comparing three dimensional quantitative fluorescence spectrum of the sample to be identified with the three-dimensional quantitative fluorescence spectrum database of the different drilling fluid system common additives and determining false show caused by which one of the drilling fluid additives if the oil and gas display is false. The method improves the determination accuracy and coincidence rate of onsite true or false oil and gas shows.