Miscible flood forecasting technique at Judy Creek
A simplified, yet rigorous forecasting technique was developed to predict the recovery performance of a hydrocarbon miscible flood in the Judy Creek Beaverhill Lake (BHL) 'A' pool in Alberta. This technique incorporates the physics of the hydrocarbon miscible displacement process as well as the complex geological reservoir description across the entire pool. The advantages of the technique over conventional three-dimensional reservoir simulation include cost effectiveness, speed, and flexibility of parametric evaluations. An areal reservoir simulation model was used to describe the areal sweep; oil recovery performance as a function of injection and solvent bank size; and solvent, chase gas and post-miscible water breakthrough times. The effect of gravity override was determined by a cross-sectional reservoir model. A geological model provided the porosity and permeability distribution for every 0.6 meter interval in each injection pattern as well as the continuous pore volume; i.e., the volume that is available for miscible displacement. The results of these models were combined in a simplified algorithm (the Forecast Model) to predict the tertiary recovery. The Forecast Model adds the tertiary recovery forecast to the waterflood forecast, which was developed from decline analysis, to generate a total oil forecast under miscible flooding. The miscible flood forecast derived from this model is physically reasonable and predicts recovery levels consistent with observed performance of large-scale miscible projects. This technique is being extended for use in other reservoirs which are candidates for miscible flooding.
- Research Organization:
- Esso Resources Canada Ltd.
- OSTI ID:
- 6569683
- Report Number(s):
- CONF-8304162-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE/DOE 12630; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ALBERTA
CANADA
CHEMICAL COMPOSITION
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
GEOLOGIC DEPOSITS
HYDROCARBONS
MATHEMATICAL MODELS
MINERAL RESOURCES
MISCIBLE-PHASE DISPLACEMENT
NORTH AMERICA
OIL FIELDS
OIL WELLS
ORGANIC COMPOUNDS
PERFORMANCE
PERMEABILITY
PETROLEUM DEPOSITS
RECOVERY
RESERVOIR ROCK
RESOURCES
SIMULATION
WELLS