Method for judging reverse condensation degree of condensate gas well through pressure measurement data at different stages

The invention relates to a method for judging the reverse condensation degree of a condensate gas well through pressure measurement data at different stages. The method comprises the steps that a condensate gas reservoir three-area composite well testing physical model is established, a condensate gas reservoir three-area composite stratum seepage model is drawn, a mathematical model is solved, and stratum parameters are obtained through fitting analysis. Acquiring pressure measurement data of a plurality of stages, drawing actual test well curves of different stages, comparing the actual test well curves with the three-area composite stratum seepage model, and identifying whether retrograde condensation occurs in the gas well or not; and by analyzing the actual test well curve of the data of the same test well at different pressure measuring stages, the retrogression radius and the permeability of each area at different time are obtained, and the retrogression range and degree of the condensate gas well are