Development of a Moving Grid Point Method for the Solution of Multicomponent, Multiphase Flow Problems in One Dimension




Goggin, David Jon

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The theory for a single component moving point finite difference method is extended for multicomponent, multi phase porous media flow problems in one dimension. The modified technique is applied for the solution of a three component, two phase solvent flood problem and a more complex co2 flood case. several versions of the multicomponent moving grid method are tested to illustrate the numerical improvements obtained for various spatial differencing and point velocity schemes. The method of characteristics is developed for the analytic solution of the partial differential equations commonly used to describe three component flow in porous media. The numerical results are compared to the solutions obtained along characteristics.


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