Predicting phase behavior of mixtures of reservoir fluids with carbon dioxide
The use of an equation of state to predict phase behavior during carbon dioxide flooding is well established. There is consensus that the characterization of the C fraction, the grouping of this fraction into ''pseudo components'', and the selection of interaction parameters are the most important variables. However, the literature is vague as to how to best select the pseudo components, especially when aiming for a few-component representation as for a field scale compositional simulation. Single-contact phase behavior is presented for mixtures of Ford Geraldine (Delaware), Maljamar (Grayburg), West Sussex (Shannon), and Reservoir D reservoir fluids, and of a synthetic oil C/C/C, with carbon dioxide. One can reproduce the phase behavior of these mixtures using 3-5 pseudo components and common interaction parameters. The critical properties of the pseudo components are calculated from detailed oil characterizations. Because the parameters are not further adjusted, this approach reduces the empiricism in fitting phase data and may result in a more accurate representation of the system as the composition of the oil changes during the approach to miscibility.
- Research Organization:
- Conoco Inc.
- OSTI ID:
- 5293523
- Report Number(s):
- CONF-8310121-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE11960; Conference: SPE annual technical conference, San Francisco, CA, USA, 5 Oct 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
OIL WELLS
CARBON DIOXIDE INJECTION
RESERVOIR FLUIDS
CHEMICAL COMPOSITION
PHASE STUDIES
CALCULATION METHODS
CARBON DIOXIDE
EQUATIONS OF STATE
FORECASTING
MIXTURES
OIL FIELDS
PETROLEUM FRACTIONS
PHASE TRANSFORMATIONS
SIMULATION
WELL STIMULATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DISPERSIONS
ENERGY SOURCES
EQUATIONS
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MINERAL RESOURCES
MISCIBLE-PHASE DISPLACEMENT
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM DEPOSITS
RESOURCES
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production