A method, product and application for predicting probability of filling of a fracture-vug carbonate reservoir

Abstract

The application provides a method, product and application for predicting filling probability of a fracture-vug type carbonate reservoir, and belongs to the technical field of geological information processing. The method comprises the following steps: using drilled well data of a target work area to carry out well logging interpretation evaluation and rock physical analysis of the target work area; establishing a fracture-vug filling geological model seismic forward modeling of the target work area; establishing a prestack iterative low-frequency model of the target work area, and performing prestack simultaneous inversion; and based on the inversion result, predicting the fracture-vug filling probability of the target work area. The application can summarize and predict the filling of a fracture-vug type carbonate reservoir in a complex karst area, can obtain lithofacies probability and filling profile of the fracture-vug reservoir, and can predict the filling of the fracture-vug type reservoir in combination with prestack inversion wave impedance and Vp / Vs, so that the prediction accuracy of the scale of effective reservoirs is improved.

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