Multicomponent carbon dioxide/water/hydrocarbon phase behavior modeling: a comparative study
Phase behavior predictions of the Peng-Robinson (PR) equation, a generalization of the van der Waals model, and the Kleintjens-Koningsveld (KK) equation, a lattice-gas model, are compared for pure CO/sub 2/, water, methane, n-butene, n-octane, n-decane, and some binary and ternary mixtures of these components. The KK equation is demonstrated to be more accurate than the PR equation for predicting the saturated liquid densities of pure fluids. The 2 equations are comparable in predictions of binary pressure-composition phase diagrams and ternary composition phase diagrams. Thus, for these properties the PR equation is preferred since it (1) is a simpler equation, (2) has fewer adjustable parameters, and (3) has parameters available for more systems than the KK equation. 23 references.
- OSTI ID:
- 6414353
- Report Number(s):
- CONF-8310121-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE-11961; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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020300 -- Petroleum-- Drilling & Production
023000* -- Petroleum-- Properties & Composition
ALKANES
BUTANE
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON DIOXIDE INJECTION
CARBON OXIDES
CHALCOGENIDES
COMPARATIVE EVALUATIONS
DECANE
DIAGRAMS
DISPERSIONS
ENHANCED RECOVERY
EQUATIONS
FLUID INJECTION
FLUID INJECTION PROCESSES
FORECASTING
HYDROCARBONS
HYDROGEN COMPOUNDS
MATHEMATICAL MODELS
METHANE
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
OCTANE
OIL WELLS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHASE STUDIES
RECOVERY
WATER
WELLS