Abstract
ABSTRACT Fifteen years of laboratory high temperature relative permeability and endpoint saturation data are analyzed. Equations are given for estimating the irreducible water and residual oil saturation to water, gas and steam based on temperature, crude oil API gravity, and absolute permeability to water. Other equations provide estimates of the permeability endpoints. These equations are applicable for heavy oils in the gravity range of 7° to 20° API, the temperature range of 75° to 400°F, and for unconsolidated sands. The calculated estimates should serve as initial input for reservoir computations; they do not substitute for measured laboratory data.
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