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2 169 255

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Application

2000107276/03, 2000-03-24

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Start date

2000-03-24

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Actual filing date

2000-03-24

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Published

2001-06-20

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Inventor

Mukhametshin M.M.Muslimova N.V.Almaev R.Kh.Khlebnikov V.N.Ramazanova A.A.Ladin P.A.Bazekina L.V.Mukhtarov Ja.G.Gafurov O.G.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Aktsionernaja Neftjanaja Kompanija

METHOD OF REGULATION OF DEVELOPMENT OF NONUNIFORM OIL FORMATION Russian patent published in 2001 - IPC

Abstract RU 2169255 C1

FIELD: oil and gas producing industry, particularly, method of regulation of permeability of non-uniform formation with help of chemical means. SUBSTANCE: method includes successive or simultaneous injection of alkali reagent solution and drilling mud, then, solutions of slats of bivalent, trivalent metals and forcing of injected reagents with water. For forcing of reagents, use is made of fresh water buffer, after which it is left to stand for 2-10 days, and solution of latex stabilized with nonionic surfactants is injected. EFFECT: more efficient regulation of permeability of non-uniform oil reservoirs due to increased depth and area of treatment. 3 ex

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RU 2 169 255 C1

Authors

Mukhametshin M.M.

Muslimova N.V.

Almaev R.Kh.

Khlebnikov V.N.

Ramazanova A.A.

Ladin P.A.

Bazekina L.V.

Mukhtarov Ja.G.

Gafurov O.G.

Dates

2001-06-20—Published

2000-03-24—Filed

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