Residual oil prediction method and device

The invention discloses a remaining oil prediction method and device, and the method comprises the steps: building a geological map for each development layer system of a preset work area, wherein thegeological map comprises a stratum structure map, an oil layer equal-thickness map, and a sedimentary microphase map; superposing the geological maps of the plurality of development strata to obtaina geological comprehensive map; marking the production actual measurement data of the preset work area on the geological comprehensive map by taking the oil well and the water well of the preset workarea as objects; identifying the geological comprehensive map according to the water content of the oil well in the preset work area to form a water logging map; converting the water content of the oil well into the oil saturation of the oil well, and converting the flooding graph into a remaining oil two-dimensional distribution graph according to the oil saturation of the oil well; and predicting the remaining oil of the