Double-dessert prediction method and device

Abstract

The invention provides a double-dessert prediction method and device. Geological static parameters and engineering dynamic parameters of a target well in the target area are obtained; wherein the geological static parameters of the target well at least comprise porosity, gas saturation and geological effective thickness in the geological static parameters of the target well; the engineering dynamic parameters of the target well at least comprise permeability, effective productivity thickness and formation pressure in the engineering dynamic parameters of the target well; determining a reserve representation coefficient of the target well according to the geological static parameters of the target well; determining a yield characterization coefficient of the target well according to the engineering dynamic parameters of the target well; according to the reserve characterization coefficient and the yield characterization coefficient, a corrected storage and production coefficient of the target well is determined; and processing the corrected storage and production coefficient by using a preset double-dessert prediction model, and determining a double-dessert area of the target well. Therefore, the accuracy, the stability and the practicability of sweet spot identification are remarkably improved.

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