ÇAĞRILI KONUŞMALAR / KEYNOTES Invited Speeches ... - TPJD

Reservoir Engineering and Simulation Study for Natural Gas Storage in
Değirmenköy Field, Soğucak Carbonates
V. Volkan Üstün , Mustafa Yılmaz
Turkısh Petroleum Corporatıon, Department of Productıon, Ankara
To support Turkey’s energy sustainability, two gas storage facilities, K. Marmara and Değirmenköy,
have been constructed and is being operated by TPAO. After many years effort and studies these
underground storage fields put on operation 4 years ago. Still, the present daily flow capacities
of these fields needs to be increased and new wells have to be added to the system.
In the study, the production and injection flow rate contribution of new wells were evaluated.
This paper contains flow test results for the wells drilled through Soğucak carbonates, and
reserve data for this formation which was achieved with material balance method. The natural
gas withdrawal and injection rates of prospect wells were found using reservoir simulation. For
this method, dynamic model was created by adding fluid properties and production-pressure
data to the geological model. History matching was performed by using daily gas flow rates,
well head pressures and also some bottom hole pressures. Then, various storage scenarios were
considered with new wells and annual working volumes with daily injection-production rates
were calculated for each scenario.
Keywords: Underground storage of natural gas (UGS), Thrace Basin, Değirmenköy Field,
reservoir simulation
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