METHOD FOR DEVELOPMENT OF OIL AND OIL-GAS DEPOSIT Russian patent published in 1997 - IPC

Abstract SU 1464552 A1

FIELD: oil production industry. SUBSTANCE: increased oil output from watered reservoirs is achieved due to de-emulsification and additional extraction of watered oil and increased embracing of reservoir by displacement with de-emulsified water. According to method, simultaneously injected into reservoir through injection wells are mixing agent and water. Mixing agent is injected into zone of initial water-oil contact under pressure which is equal to mixing pressure of injected agent and de-emulsified oil. Water is injected into zone below initial water-oil contact. Used as mixing agent are hydrocarbon solvents, hydrocarbon gas or their mixes. Utilization of aforesaid method prevents loss of oil due additional creation of water-oil emulsion. Also excluded is loss of capillary-held and film oil. EFFECT: high efficiency. 1 cl, 1 dwg

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SU 1 464 552 A1

Authors

Jamaletdinova K.Sh.

Kovaleva L.A.

Degtjarev N.M.

Khalikov G.A.

Shejkh-Ali D.M.

Gazizova Kh.A.

Dates

1997-10-27Published

1987-04-08Filed