Method for rapidly calculating flooding front edge of fractured reservoir

The invention relates to the field of oil reservoir fractures, in particular to a method for quickly calculating a flooding front edge of a fractured oil reservoir, which is characterized by comprising the following steps of: (1) enabling a flooding area to be equivalent to an ellipse; (2) acquiring a water-driven propelling position at any moment and in any direction; (3) correcting the water drive propelling position in the step (2); and (4) correcting the position corresponding to the ellipse in the step (1) according to the corrected water drive propulsion position, and drawing a water flooding front propulsion plane graph. The method has the beneficial effects that a calculation method of the convenient speed is provided for quantitatively calculating the advancing position of the flooding front, a visual and reliable basis can be provided for oil-water well measure optimization, and powerful support is provided for well position optimization of an adjusting well and a washing inspection well; calculatin