Optimal CO2 allocation and scheduling in enhanced oil recovery (EOR) operations

John Frederick D. Tapia, Jui-Yuan Lee, Raymond E.H. Ooi, Dominic C.Y. Foo and Raymond R. Tan

Applied Energy, 2016, vol. 184, issue C, 337-345

Abstract: Carbon capture and storage (CCS) is an important technology option for reducing CO2 emissions into the atmosphere. The most commercially viable way to deploy CCS on a large scale is via coupling with enhanced oil recovery (EOR) operations. These operations allow the reduction of CO2 emissions through geological sequestration, coupled with generation of additional revenues through increased oil production as a result from CO2 re-injection through EOR. EOR also enables both CO2 utilization and storage (CCUS) as a carbon management strategy with long CO2 storage life. In practice, planning EOR operations takes into account mass balance and temporal aspects of a given site. When multiple oil reservoirs are involved, it is necessary to allocate the available CO2 supply and schedule suitable timing for EOR operations for these reservoirs. CO2 allocation and scheduling are thus important aspects in maximizing the economic benefits that arise from EOR operations. In this work, a mixed integer linear programming (MILP) model is developed to address CO2 allocation and scheduling issues for EOR operations. A discrete-time optimization approach is developed to consider both economic discounting and reservoir depletion. Two illustrative case studies are solved to illustrate the model.

Keywords: Carbon capture and storage; Enhanced oil recovery; Mathematical programming; Mixed integer linear programming; CO2 allocation; Scheduling (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (22)

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DOI: 10.1016/j.apenergy.2016.09.093

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