Limitations in the use of pseudofunctions for up-scaling reservoir simulation models
Conference
·
OSTI ID:153078
- Univ. of New South Wales, Kensington, New South Wales (Australia)
This work presents an alternative methodology of generating two-phase pseudo relative permeability and capillary pressure functions, using numerical simulation, when non-constant characteristic saturation curves exert a strong impact on the displacement process. The proposed length-dependence pseudofunction technique generates pseudofunctions from 2-dimensional cross-sectional black-oil simulations and later used in a 1-simulation predictions are compared to those of the conventional Kyte and Berry method. In addition to this, a case example is given to validate the application of length-dependent pseudos in a 3-dimensional simulation. In this example, sets of length-dependence pseudofunctions were generated and used in a 2-dimensional areal study. Simulation results showed that: (a) Curved saturation characteristic velocities occurred in most up-scaled representations and (b) The introduction of length-dependence pseudofunctions could result in improved predictions using coarse simulation models.
- OSTI ID:
- 153078
- Report Number(s):
- CONF-950206--
- Country of Publication:
- United States
- Language:
- English
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