| abstract |
FIELD: oil extractive industry. n SUBSTANCE: composition for controlling extraction of oil deposits including exopolysaccharide produced by culture Azotobacter vinelandii (Lipman) in form of culture liquid, chrome-potassium alums and water, additionally has sodium or potassium salt of carbonoxidemethylcellulose with following ratio of components in percents of mass: said exopolysaccharide 3.0-10.0, chrome-potassium alums 0.05-2.0, sodium or potassium salt of carbonoxidemethylcellulose 0.05-2.0, water is the rest. n EFFECT: higher efficiency. n 3 tbl |