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IPC

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Application

98103112/03, 1998-02-23

(24)

Start date

1998-02-23

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Actual filing date

1998-02-23

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Published

1999-12-27

(72)

Inventor

Khalilov L.M.Kobjashev A.V.Tipikin S.I.Dzhemilev U.M.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb

METHOD OF TREATMENT OF BOTTOM-HOLE FORMATION ZONE OF INJECTION WELLS Russian patent published in 1999 - IPC

Abstract RU 2143552 C1

FIELD: oil production, particularly, methods of increase of formation oil recovery and oil recovery intensification. SUBSTANCE: method provides for preliminary treatment of bottom-hole formation zone with water-repellent composition in form of aqueous solution of cationic surfactant in concentrations of 0.05-0.1% and subsequent injection of gel-forming composition. EFFECT: higher activity of gel-forming system applicable in treatment of bottom-hole formation zone of injection well.

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RU 2 143 552 C1

Authors

Khalilov L.M.

Kobjashev A.V.

Tipikin S.I.

Dzhemilev U.M.

Dates

1999-12-27—Published

1998-02-23—Filed

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