Effect of Phase Behavior on CO2 Displacement Efficiency at Low Temperatures: Model Studies With an Equation of State

Long X. Nghiem, Y. K. Li

SPE Reservoir Engineering · 1986 · 44 citations · 35 references

Concepts

Abstract

Summary In this paper, we examine the use of an equation of state (EOS) to predict the phase behavior of CO2/crude-oil systems at low temperatures. An adequate match of the experimental pressure/composition diagrams of a dead oil and two recombined oils from the Wasson field at 90°F [32°C] is obtained. The incorporation of three-phase flash calculations in a compositional model is described. The model is used to simulate CO2 slim-tube displacements and yields results that are consistent with experimental observations.

References

35