...Compositional Space Parameterization:
Theory and Application for ...Immiscible
Displacements
D.V. Voskov, SPE, and H.A. Tchelepi, SPE, Stanford University
Summary
decades in i...based phase behavior computations. For example, the flash
Thermodynamic equilibrium calculations in compositional flow computations associated with miscible ...
...rature, and overall mole
fraction of component i, respectively; x
i
and y
i
represent oil and
gas mole fractions; L is the mole fraction of the liquid phase;
f
i,V
(p, T, y
i
) and f
i,L
(...itution
480 F.
iteration (SSI) and Newton's method is usually used (Michelsen
and Mollerup 2004).
Compositional Space Parameterization (CSP) Solution Invariance
We present a tie-line-based parameterization of th...e compositional Parameterization of the tie-line space using the new tie-line-based
space for use in reservoir flow...
...for 1D flow and 2D
5-spot displacements of oil made up of {CO
2
, C
1
, C
4
, C
10
} by gas.
All solutions are obtained using the Eclipse simulator.
for any fixed j. In these equations, the ... stable waves and shocks, which
form the solution of Eqs. 8 and 9 for incompressible 1D problems
in compositional space, correspond to stable waves and shocks that
CO
2
represent the solution of the thermodyna...c properties of the initial problem and
depends only on the thermodynamic conditions (e.g., initial/injection
compositions). Invariance of the solution path in -space with
C
1
respect to variation in the h...
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