FIELD: oil production. SUBSTANCE: method is laid in oil production through heated water injection in the stratum. Water used as coolant of petroleum products and machine equipment and extracted to heat exchanger units related to oil treatment is injected in the stratum. The water is extracted from a unit placed on oil field. Unit of electric desalinization, electric dehydranation, atmospheric oil flashing, and unit of thermal-contact cracking are used as oil treatment unit. Natural fresh and mineralized water, for example, sea water are used. EFFECT: higher oil production. 1 dwg
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