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Talk · December 22, 2022

Optimization of CO2 Enhanced Oil Recovery Operating Condition: A Case Study, Prudhoe Bay, North Slope Alaska, USA

Sonny Irawan, Cahaya Sultan Iskandar, Naufal Septio, Achmad Nadhif Masruri, Totok R. Biyanto

Sonny Irawan
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Abstract

Fossil fuel consumption continues to increase every year and the possibility to find new reserves will be increasingly difficult.It can be estimated that if the current rate of consumption and production continues, oil reserves will be depleted in 50 years.The increasing difficulty in finding new oil fields causes oil companies to try to increase the Recovery Factor value to maintain the economic level of oil.To increase the RF value, an EOR operation is carried out which can produce about more than 50% to 80% OOIP.To get the optimal recovery value, it is necessary to optimize the CO 2 EOR operating condition variables, including mass flow rate of CO 2 injection, CO 2 injection temperature, and CO 2 injection pressure.The modeling of the CO 2 EOR operating pressure gradient in production and injection wells uses the Begg's-Brill method, while the Darcy equation for reservoirs uses the Darcy equation.For modeling the temperature gradient on the production well, injection well, and reservoir using the heat transfer equation.Based on the optimization results using Genetic Algorithm, the net profit increased from 1,458.02USD/day to 9,510.33 USD/day.While the optimization results using the Killer Whale Algorithm get an increase in net profit from 1,458.02USD/day to 9,509.71USD/day.

Enhanced Oil Recovery TechniquesReservoir Engineering and Simulation MethodsCO2 Sequestration and Geologic InteractionsCO2 enhanced oil recoveryprocess parameter optimizationPrudhoe Bay oil field

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