Scaling up heterogeneities with pseudofunctions

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · SPE Formation Evaluation (Society of Petroleum Engineers); (USA)

DOI:https://doi.org/10.2118/18436-PA· OSTI ID:6499828

Kossack, C A; Aasen, J O; Opdal, S T ^[1]

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1. Norwegian Inst. of Technology (NO)

This paper describes a multistep pseudofunction-generation process designed to incorporate several scales of heterogeneities into one set of final pseudofunctions to be used in large gridblocks for field simulations. A detailed description of the multistep scale-up process is provided. The calculation procedure and the results of an extensive numerical scaling-up experiment from Kyte and Berry pseudofunctions are described. Three geological descriptions involving random permeability variations are used. The effect of three scales (sizes) of heterogeneities on a standard oil/water relative permeability curve is determined from a three-step pseudofunction-generation process. Ranges of mobility ratios, viscosity/gravity ratios, and viscosity/capillary ratios are used in the displacements to provide a guide to the effect of various types and scales of hetrogeneities on fluid flow in several regimes.

• OSTI ID: 6499828
• Journal Information: SPE Formation Evaluation (Society of Petroleum Engineers); (USA), Journal Name: SPE Formation Evaluation (Society of Petroleum Engineers); (USA) Vol. 5:3; ISSN 0885-923X; ISSN SFEVE
• Country of Publication: United States
• Language: English

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42 ENGINEERING
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CALCULATION METHODS
DISPLACEMENT FLUIDS
FLUID FLOW
FLUIDS
GEOLOGIC DEPOSITS
GEOLOGY
MINERAL RESOURCES
OIL FIELDS
PERMEABILITY
PETROLEUM DEPOSITS
RESERVOIR ROCK
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SIMULATION
VARIATIONS
VISCOSITY