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2 011 807

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IPC

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Application

4845236/03, 1990-04-21

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Actual filing date

1990-04-21

(45)

Published

1994-04-30

(72)

Inventor

Sonich V.P.Il'In V.M.Kravchenko I.A.Tatarinov B.N.Khajrov Eh.S.Tikhonov V.V.Satdredinov A.A.Rachkov V.G.

(73)

Holder

Sonich Vladimir PavlovichKravchenko Igor' Anatol'Evich

METHOD FOR PETROLEUM DEPOSIT WORKING Russian patent published in 1994 - IPC

Abstract RU 2011807 C1

FIELD: petroleum industry. SUBSTANCE: aqueous solution of carboxymethylcellulose is pumped into petroleum stratum. The process is followed by pumping 12-24% solution of hydrochloric acid and 5-15% aqueous solution of non-ionogenic surface active substance into it. Summary volume of these solutions is 60-250 m3/m. EFFECT: improves efficiency of the method. 2 tbl

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RU 2 011 807 C1

Authors

Sonich V.P.

Il'In V.M.

Kravchenko I.A.

Tatarinov B.N.

Khajrov Eh.S.

Tikhonov V.V.

Satdredinov A.A.

Rachkov V.G.

Dates

1994-04-30—Published

1990-04-21—Filed

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