COMPOUND FOR DISPLACEMENT OF OIL Russian patent published in 1999 - IPC

FIELD: oil production industry. SUBSTANCE: this relates to compounds based on biological surface-active materials used for flooding of beds with purpose of increasing oil recovery. Compound for oil displacement or water dispersion of surface-active materials contains cultural liquid of strain of Pseudomonas acruginosa S-7 at degree of micellar development up to 250 times at presence of reagent. Compound is ecologically safe because pollution of environment is excluded due to biodegradation of biological surface-active materials. Application of aforesaid compound enhances efficiency of oil displacement due to intensified emulsification. Preparation of compound is simplified. EFFECT: higher efficiency. 3 tbl