Gas Phase Appearance and Disappearance in Fully Implicit Black Oil Simulation

1 October 1984

journal article
conference paper
Published by Society of Petroleum Engineers (SPE) in Society of Petroleum Engineers Journal

Vol. 24 (05) , 505-507
https://doi.org/10.2118/11757-pa

Abstract

This paper describes the pseudogas and variable substitution methods for handling gas phase appearance/disappearance in fully implicit black oil simulation. The results of several test runs indicate that there is virtually no difference between these two methods in terms of efficiency. The pseudogas method is easier to program than variable substitution but requires some crucial reallocations of saturations and shows greater material balance errors.

Keywords

This publication has 3 references indexed in Scilit:

TECHNIQUES FOR FULLY IMPLICIT RESERVOIR SIMULATION
Published by Society of Petroleum Engineers (SPE) ,1980
A Numerical Simulation Model for Thermal Recovery Processes
Society of Petroleum Engineers Journal, 1979
A Highly Implicit Steamflood Model
Society of Petroleum Engineers Journal, 1978