For citation:Farzaliyev V.М., Streek M., Movsumzade E.M., Babayev E.R., Mammadova P.Sh., Eyvazova I.M. Development of new composition with effective biocidal and oil-displacing properties. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 1. P. 68-74.The efficiency of oil-displacing and biocidal properties of the developed composite mixes of water-soluble polymer – polyacrylamide and some surface-active agents was studied. On the model setups, simulating core - collector samples, the oil extrating coefficients were determined for a particular oil field taking into account the chemical compatibility of oil-displacing agents with the horizon fluids. Antimicrobial effectiveness of the synthesized compound - 1-butoxy-3-oxazolidine methoxybutane in the composition of M-8 lubricating oil and Az-5 emulsion was revealed. The following developed compositions - Grotan-OX + Biocide B in the ratio of 1:1 and 1:3 (wt.). Their antimicrobial properties in the similar conditions were studied. Some synergistic action is observed at combination of these components, which leads to improved biocidal properties. It was shown that the presence in the composition of Grotan-OX reagent both individually or in combination with biocide at low concentrations (0.5 wt.%) significantly improves its oil-displasing abilities (87%) and at the same time gives effective biocidal properties.