A study of CO2 injection into an oil reservoir on the Norwegian Continental Shelf has been conducted. Oil production during miscible CO2 injection was simulated with a compositional reservoir simulator and a three dimensional reservoir model. This production profile was compared to water injection. The simulations showed that considerably more oil could be recovered with CO2 injection, approximately 63% OOIP, compared to approximately 43% OOIP for water injection.

Results from miscibility studies, measurement of phase diagrams and extraction experiments were used to tune the phase behaviour description of the simulator. Numerical simulation of laboratory core flood experiments were used to quality test the compositional simulator. A good agreement between measured and simulated production profiles were obtained.

Keywords:
heterogeneous core, injection, injection scenario, trondheim, upstream oil & gas, reservoir, holt, lindeberg, simulation, oil reservoir
Subjects:
Fluid Characterization, Improved and Enhanced Recovery, Phase behavior and PVT measurements
Copyright 1994, Society of Petroleum Engineers
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