Determining Reservoir Potential in the Yaran Oil Field

Sarvak Formation as the oil reservoir with the most hydrocarbon potential in Yaran oil field is of special importance. The present research was conducted to study the reservoir parameters of this Formation. For this purpose, petro-physical crude data was first prepared and using the Geolog6.7 software, a petro physical plot was drawn. Afterward, petro-physical properties of reservoir were done by modeling and using cross plots and logs, including porosity, permeability, lithology type, shale volume, water saturation and fractures analysis were investigated. Finally, with the adaptation of petro-physical parameters and other geological assessments from drilling cores, reservoir zoning and reservoir quality was analyzed. The obtained results showed that in the studied well there is a depth of 2600 to 2693 m of hydrocarbon potential friends. Effective porosity of the Sarvak Formation varies from 10 to 15%. Moreover, all of the investigated methods present of the prevailing lithology Carbonate, which can be on some outcrops of the shale layers, which has led to a decrease in reservoir quality in other zones.