Optimizing field depletion plan in heavy oil reservoirs using numerical simulation: Gulf of Suez – Egypt

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Fayed M, Hassan Z and Edward G

Gulf of Suez Petroleum Company, Egypt
BP Company, Egypt

: J Chem Appl Chem Eng

Abstract

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The Gulf of Suez Petroleum Company (GUPCO) is a leading Offshore Egyptian petroleum company, produced more than 4.6 billion oil barrel, which represent more than 43% of Egypt’s total cumulative oil to date.GS327 field is one of marginal fields, has four compartments and two stacked reservoirs with strong aquifer support. The produced oil is relatively heavy oil and in such reservoirs, the oil viscosity is 10 times of water viscosity, which could decrease sweep efficiency and result too much bypassed oil. Integrated Reservoir study done for Southwest compartment of GS327 field, ASL reservoir, using analytical and 3D simulation modeling approaches to evaluate the remaining reserves, locations, by passed oil, and optimize new wells locations. The analytical reservoir approaches included analyzing wells oil and water production performance, field pressure/ production performance, reviewing saturation and production logs & estimate the remaining reserves of the current wells (DCA, WOR approaches). Comparing the recovery factor with other analogue fields to determine the need for drilling new wells. The present study showed heavy oil reservoir management using different approaches. Poor sweep efficiency is expected heavy oil reservoirs so 3D simulation is mandatory to locate the bypassed and swept areas and optimize wells locations. Based on this study, we recommended drilling many new wells to maximize oil recovery and sweep efficiency because the fluid is relatively heavy oil. We have drilled and completed the first successful well in september 2017 with 2000 BOPD initial rate and add 2 mmbo and we are planning for drilling more wells to maximize the value of resources.

Biography

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E-mail: mahmoudsf@gupco.net