Abstract
An innovative addition to the conventional oil and gas extraction by introducing enhanced oil recovery (EOR) techniques in the Danish North Sea is something which has been sought for long time. Combining the offshore EOR technology with the carbon capture and storage (CCS) is considered to be a possibly attractive solution as the associated benefit is twofold: (1) increased oil recovery through miscible displacement via CO2 pushing the hydrocarbons out of the reservoir and (2) the disposal of a greenhouse gas such as the CO2. A feasibility study for implementing a carbon capture, storage and utilization (CCUS) project is presented in the scope of this study, in a North Sea Chalk Field which is the oldest and one of the largest oilfields in the Danish sector, both for the technical and the economic merit, by means of using a commercial reservoir simulation package. The capital (CAPEX) and operational (OPEX) expenditures associated with such a long term development project is estimated. Results suggest that around 100 million barrels of additional oil reserves can be unlocked via CO2 injection, while 40 million tones of CO2 is being trapped in the reservoir.
Published Version
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