Wells – Processes – Using microorganisms
Patent
1975-11-03
1977-08-02
Novosad, Stephen J.
Wells
Processes
Using microorganisms
166273, 166275, E21B 4322
Patent
active
040390284
ABSTRACT:
A composition and method for providing improved mobility control in secondary and tertiary recovery processes obtained by injecting into a subterranean hydrocarbon-bearing formation, as part of the secondary or tertiary recovery fluid, an aqueous solution of a mixture of a heteropolysaccharide produced by bacteria of the genus Xanthomonas together with a polyacrylamide or a chemically altered derivative of a polyacrylamide.
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patent: 3684014 (1972-08-01), Norton et al.
patent: 3707187 (1972-12-01), Knight
patent: 3724545 (1973-04-01), Knight
patent: 3844350 (1974-10-01), Knight et al.
patent: 3850244 (1974-11-01), Rhudy et al.
patent: 3882939 (1975-05-01), McAtee et al.
New Polysaccharide Gums Produced by Microbial Synthesis, Manufacturing Chemist, XXXI, No. 5, May 1960, pp. 206-208.
Jeanes et al., Polysaccharide B-1459:A New Hydrocolloid Polyelectrolyte Produced from Glucose by Bacterial Fermentation, Journal of Applied Polymer Science, vol. V, Issue No. 17, 1961, pp. 519-526.
Floyd Gerald L.
Hartman Richard C.
Novosad Stephen J.
Sandford Dean
Suchfield George A.
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