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Mathematical Simulation of Historic Gas Distribution by Diffusion in an Oil Reservoir.
Cupps-CQ; Brow-GT; Fry-JJ
NTIS: PB 200 696 :26 pages
Rate of gas diffusion in reservoir oil has been investigated in an effort to explain the variation in oil characteristics observed in the weber sandstone reservoir, rangely field, Colorado. Coefficients of gas diffusion were determined experimentally for the rangely oil system and used in a mathematical simulation of gas diffusion during the probable life of the rangely reservoir, estimated at 65 million years. The simulator involved solution of fick's law for diffusion in two dimensions by the method of finite difference and successive over-relaxation. The results show that continuing gas diffusion is a logical explanation for the variation in oil characteristics at rangely and that the pattern of gas distribution by diffusion in an asymmetrical reservoir will not conform to structural contours as originally proposed. Work done in cooperation with the University of Wyoming.
IH; Report of Investigation;
NTIS Accession No.
NTIS: PB 200 696
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division