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1 800 868

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A1

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IPC

(21) (22)

Application

4835923/03, 1990-06-12

(22)

Actual filing date

1990-06-12

(45)

Published

1995-04-30

(72)

Inventor

Gazizov A.Sh.Rakhmatullin R.R.Galaktionova L.A.Borovikov G.G.Mardanov A.F.Safin I.I.Gazizov A.A.

METHOD FOR INCREASE OF WATERFLOODING SWEEP OF NONUNIFORM FORMATIONS Russian patent published in 1995 - IPC

Abstract SU 1800868 A1

FIELD: oil producing industry. SUBSTANCE: injected into well through injection well in alternating portions are precipitator aqueous solution of sodium carbonate with concentration of 30-200 kg/cu.m in ratio from 1:1.4 to 1:9.0. Precipitator is taken in form of wastes of alkylation of benzene with olefin, which contains in aqueous solution 200-300 g/cu.dm of alumochloride and 0.5-1.0 g/cu. dm of organic and mechanical impurities. EFFECT: higher efficiency. 3 tbl

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SU 1 800 868 A1

Authors

Gazizov A.Sh.

Rakhmatullin R.R.

Galaktionova L.A.

Borovikov G.G.

Mardanov A.F.

Safin I.I.

Gazizov A.A.

Dates

1995-04-30—Published

1990-06-12—Filed

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