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Gas Flood Efficiency Improvement by Polymer Injection.
NTIS: PB 190 998 :8 pages
The Bureau of Mines investigated the use of dilute polymer in brine solutions to increase the efficiency of air in gas flooding model oil reservoirs. Slugs (0.23 Pore volume) of 500 ppm polyacrylamide were injected into a model, consisting of a high- and a low- permeability core, that had been previously gas flooded in residual oil. Gas flooding was then resumed. Of the total gas volume injected, the percentage entering the high-permeability zone was greatly reduced after polymer injection but remained unchanged when slugs of water without polymer were used.
NTIS Accession No.
NTIS: PB 190 998
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division