Natural gas index prediction method and system based on diffusion and synthesis indexes

The invention discloses a natural gas index prediction method and system based on diffusion and synthesis indexes. The prediction method comprises the following steps: constructing a natural gas index S interval model; calculating indexes are selected according to the natural gas diffusion indexes and the natural gas synthesis indexes; building a natural gas index measurement and calculation model according to the measurement and calculation indexes; solving the natural gas index measuring and calculating model to obtain a natural gas index S; comparing the natural gas index S with the natural gas index interval model, and outputting a natural gas index S prediction result; comprehensively obtaining a natural gas index based on a diffusion index and synthesis index calculation method, wherein a natural gas index value formed under a multi-time sequence condition can accurately present a natural gas supply/use development rule, so a natural gas enterprise is helped to predict natural gas supply/use data. 本发明公开