Method for inverting carbon dioxide flooding frontal edge by multi-point continuous pressure measurement data

The invention provides a method for inverting a carbon dioxide flooding frontal edge by multi-point continuous pressure measurement data. The method for inverting the carbon dioxide flooding frontal edge by the multi-point continuous pressure measurement data comprises the steps that 1, the actually measured continuous bottom-hole flowing pressure of a gas injection well and an oil production well are determined, and an actual measured continuous injection-production pressure difference is calculated according to the actually measured continuous bottom-hole flowing pressure of the gas injection well and the oil production well; 2, the theoretical continuous bottom-hole flowing pressure of the gas injection well and the oil production well are calculated, and a theoretical continuous injection-production pressure difference is calculated according to the theoretical continuous bottom-hole flowing pressure of the gas injection well and the oil production well; and 3, a carbon dioxide additional pressure drop is