Browsing by Subject "Flood displacement performance"

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Composidonal Simulation of Carbon Dioxide Oil Recovery Experiments
(1988-05) Ogino, Kiyoshi; Pope, Gary A.; Sepehrnoori, Kamy
In the design of C02-flood field applications several steps are necessary to evaluate technical feasibility and to optimize CO2 injection scheme. Laboratory experiments including phase behavior measurements, slim tube and core displacements provide fundamental data to characterize C02-oil mixtures and to determine possible displacement mechanisms. Experimental data are also used for fine-tuning of phase behavior packages in compositional simulation models. Phase behavior plays a dominant role in the vaporization or extraction process by which miscibility is achieved. Slim tube tests are useful to determine the pressure for generation of multiple contact miscibility. Core displacement tests are particularly important to evaluate the effect of rock properties on the displacement efficiency. Phase behavior and displacement mechanisms are complex and cannot be fully explained by experiments only. A combination of experimental investigation and simulation model studies provides insight into these mechanisms. Numerical simulation is considered a reliable means to analyze design and operation criteria for C02-flood applications. The objective of this thesis is to evaluate the CO2-flood displacement performance by using the equation-of-state based compositional simulation model. A multicomponent, multiphase equation-of-state (EOS) compositional simulator, UTCOMP version l.O[C3], was employed for these simulation studies.