COMPOSITION FOR CONTROLLING DEVELOPMENT OF OIL DEPOSITS

摘要

FIELD: oil and gas production. SUBSTANCE: composition contains 0.001 to 0.5 wt % of exopolysaccharide of bacterial strain Azotobacter vinelandii (lipman) B-5933 in the form of cultural broth, 5 to 10 wt % of grouting mortar, and water - the balance. As grouting mortar, plastic filler based on paper impregnated with amino-formaldehyde and phenol- formaldehyde resins is used. EFFECT: increased filtration resistance of nonuniform strata, changed profile injectivity, and increased formation productivity. 2 tbl