Petroleum demand quantity prediction method and system

The invention belongs to the technical field of petroleum supply and demand prediction, and provides a petroleum demand prediction method and system, and the method comprises the steps: configuring an intelligent agent interaction scene based on the petroleum supply condition of a historical time period; constructing a petroleum supply chain simulation model, and controlling and operating each agent to simulate an actual petroleum supply condition; establishing an association relationship between the petroleum demand quantity and the time by adopting a gray model to obtain an association prediction formula; acquiring related data of the current emergency event, and calculating a petroleum demand prediction amount of the current emergency event by using the corrected correlation prediction formula; and taking the calculated petroleum demand quantity as an input parameter of the petroleum supply chain simulation model so as to dynamically predict the petroleum supply quantity and the change condition of the dem