BACTERICIDAL COMPOSITION FOR CONTROLLING GROWTH OF MICROORGANISMS IN PETROLEUM PRODUCTION MEDIA Russian patent published in 1998 - IPC

FIELD: petroleum extracting industry, more particularly suppression of vitality of sulfate reducing and heterotrophic bacteria. SUBSTANCE: bactericidal composition comprises, as amines, mixture of xylidines and further aromatic or naphthene-isoparaffin hydrocarbon fractions containing at least 20% aromatic hydrocarbons and containing no n-paraffins, or diesel fuel of 3 or A grades, the ratio of components is as follows, wt.%: xylidine, 30-50; and aromatic or naphthene-isoparaffin hydrocarbon fractions, the balance. The composition makes it possible to increase degree of suppression of growth of microorganisms, widen spectrum of microflora to be suppressed and to inhibit corrosion of production equipment. EFFECT: improved properties of the bactericidal composition. 3 tbl