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2 114 987

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C1

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IPC

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Application

96111792/03, 1996-06-04

(22)

Actual filing date

1996-06-04

(45)

Published

1998-07-10

(72)

Inventor

Glumov I.F.Jusupov I.G.Kochetkov V.D.Vagizov N.G.Votintseva E.F.

(73)

Holder

Tatarskij Nauchno-Issledovatel'Skij I Proektnyj Institut Nefti

METHOD OF RECOVERING OIL FROM NONUNIFORM OIL BED Russian patent published in 1998 - IPC

Abstract RU 2114987 C1

FIELD: oil production industry. SUBSTANCE: according to method, thickening agent is injected into well. Used as thickening agent is water dispersion of residues obtained from water-purification stations. These residues are resulted from water purification by coagulation with aluminium sulfate or ferrum sulfate. Injection of thickening agent is carried out until injection pressure exceeds initial pressure by 30-50%. Application of aforesaid method increases oil recovery from beds which are nonuniform in permeability. EFFECT: higher efficiency. 1 tbl

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RU 2 114 987 C1

Authors

Glumov I.F.

Jusupov I.G.

Kochetkov V.D.

Vagizov N.G.

Votintseva E.F.

Dates

1998-07-10—Published

1996-06-04—Filed

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