Method and system for predicting and evaluating carbon dioxide sequestration leakage risk

The invention discloses a carbon dioxide storage leakage risk prediction and evaluation method and system. The method comprises the following steps: constructing a carbon dioxide storage layer model under the type; according to the pressure values and coordinates of the minimum thickness positions of the adjacent rock stratums from bottom to top in the storage layer model, if the pressure values all exceed a first threshold value, the distance between the minimum thickness positions of the adjacent rock stratums is calculated; and if the distance between the adjacent minimum thickness positions is smaller than a second threshold value, upward calculation continues, and if the pressure value of the minimum thickness position of the rock stratum top layer exceeds a first threshold value, it is judged that the carbon dioxide sequestration site has the leakage risk. By fitting the carbon dioxide leakage judgment model, the leakage judgment effect and the calculation accuracy of the calculation ...