Abstract

ABSTRACT The technology of enhanced oil recovery based on reservoir microflora activation through periodic activation of the injected water with mineral salts of nitrogen and phosphorus added to it, was developed. As a result, intensification of microorganisms takes place. The microorganisms create such oil displacing products as CO2, CH4, fatty acids, alcohols, surfactants and etc. The method was tested at 7 pilot areas of oil fields in different regions of the country. It allowed to recover 70 thousand tonnes of additional oil.

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