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The paper considers a possibility of using complex information on morphological parameters of structures, unconnected porosity and reservoir pressure gradient for previously explored deposits for developing a multidimensional equation to estimate the secondary porosity on an example of reservoirs with secondary (fracturing) porosity of Upper Cretaceous deposits in the Terek-Sunzha oil and gas bearing region of Pre-Caucasus. This equation allows predicting the secondary porosity value in new anticlinal structures revealed with seismic survey at later stages of exploration in the respective oil and gas bearing region and using it as a quantitative criterion to predict existence of an entrainment trap. Keywords— fractured reservoir, oil and gas deposit, porosity, prediction, carbonate sediments, Tersek-Sunzha oil and gas bearing region

Predicting Fractured Carbonate Reservoirs at the Early Stage of Exploration of Oil and Gas Deposits