OIL EXTRACTION METHOD Russian patent published in 2024 - IPC E21B43/00 E21B47/06 

FIELD: oil, gas and coke-chemical industry; mining.

SUBSTANCE: invention relates to a method of oil production with in-line injection of a displacement agent, and can be used in the oil industry. Technical result is achieved by the proposed method of oil production, in which: receive well parameters; define minimum miscibility pressure; determining injectivity of injection wells, as well as bottomhole and wellhead pressure at injection well; determining specific flow rate of displacement agent per unit volume of produced oil for injection wells and separating from all injection wells at least one injection well with the highest value of the specific flow rate of the displacement agent per unit volume of the produced oil; pumped displacement agent in injection wells, wherein pumping is carried out in such a way that on injection wells bottomhole and wellhead pressures correspond to or exceed previously determined bottomhole and wellhead pressures, and on at least one injection well with the highest value of the specific flow rate of the displacement agent per unit volume of the produced oil, the bottomhole and wellhead pressure was less than said bottomhole and wellhead pressure; carry out oil production from at least one production well.

EFFECT: increased efficiency of displacement agent usage, expressed in the form of additional oil production per unit of injected displacement agent.

9 cl, 6 dwg