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2 170 817

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Application

99119855/03, 1999-09-13

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Start date

1999-09-13

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Actual filing date

1999-09-13

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Published

2001-07-20

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Inventor

Mukhtarov Ja.G.Davydov V.P.Jagafarov Ju.N.Iljukov V.A.Gumerov R.R.Gafurov O.G.Jakimenko G.Kh.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Aktsionernaja Neftjanaja Kompanija

METHOD OF DISPLACEMENT OF UNRECOVERED OIL Russian patent published in 2001 - IPC

Abstract RU 2170817 C2

FIELD: oil and gas producing industry, particularly, methods of displacement of unrecovered oil from nonuniform permeable formations. SUBSTANCE: method includes successive injection of wastes of oil treatment and water with additive in form of aqueous solution of hydrochloric acid with zeolite-containing component. Additive is introduced between fringes of wastes of oil treatment in volumetric ratio of 1:2:1.3. EFFECT: higher efficiency of displacement of unrecovered oil from nonuniform permeable formations due to more rational reduction of permeability of waterencroched reservoir. 1 tbl, 3 ex

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RU 2 170 817 C2

Authors

Mukhtarov Ja.G.

Davydov V.P.

Jagafarov Ju.N.

Iljukov V.A.

Gumerov R.R.

Gafurov O.G.

Jakimenko G.Kh.

Dates

2001-07-20—Published

1999-09-13—Filed

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