Mobility weighting in numerical reservoir simulation
The sensitivity of a numeric steam flooding model with respect to mobility weighting is examined in depth. Three numeric discretization procedures are used in this investigation: a new numeric scheme, a 5-point finite difference method, and a procedure which, under certain assumptions, is equivalent to that introduced by McCracken and Yanosik. Three mobility weighting schemes also are investigated: (1) upstream mobility weighting; (2) harmonic total mobility weighting; and (3) upstream weighting of fractional flow terms. The approach introduced uses the kinematic viscosity in the total mobility and the fractional flow terms. The steam displacement model formed from the combination of this mobility weighting approach and the McCracken and Yanosik discretization procedure is shown to produce realistic simulations of an inverted 7-spot pattern under a continuous steam drive. 20 references.
- OSTI ID:
- 6158604
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE-12566
- Country of Publication:
- United States
- Language:
- English
Similar Records
DEVELOPMENT OF MORE-EFFICIENT GAS FLOODING APPLICABLE TO SHALLOW RESERVOIRS
A physically based numerical approach for modeling fracture-matrix interaction in fractured reservoirs