||Effect of Formation Dip on the Movement of Fresh Water Stored in Saline Aquifers.
Kimble, Oscar K. ;
||Louisiana State Univ., Baton Rouge. Dept. of Petroleum Engineering.
||DI-14-31-0001-3218; OWRR-1-011-3218; 03336,; A-011-LA(2)
Water storage ;
Salt water ;
Fresh water ;
Ground water recharge ;
Injection wells ;
Liquid waste disposal ;
Fluid flow ;
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A fluid flow model was used to investigate the importance of viscous fingering in a radial system. Viscous fingering at unfavorable viscosity ratios (low viscosity fluid displacing higher viscosity fluid) led to extreme irregularities in the displacement front. It was postulated that the study would indicate the effect which gross aquifer inhomogeneities might have on the recovery efficiency during the storage process. A series of displacements in which the low viscous fluid was injected to a given radius and them produced back through the same well showed that extreme irregularities of the front developed during injection but irregularities were essentially erased during the production half-cycle.