FIELD: oil production industry. SUBSTANCE: according to method, at first stage of operation oil and water are pumped out from part of wells, and then oil and water are injected into other wells until required pressure is reached at well head or until other wells are filled with oil. In this case, oil is accumulated in aforesaid wells, and water is stored in deposit. At second stage of operation, oil is pumped out from all wells and delivered into system of oil and gas collection until entire volume of oil or part of it is withdrawn from other wells. Aforesaid method increases oil recovery due to formation of widening front of oil displacement by water being injected. EFFECT: higher efficiency. 1 dwg
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