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2 224 092

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C1

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IPC

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Application

2002118658/03, 2002-07-10

(24)

Start date

2002-07-10

(22)

Actual filing date

2002-07-10

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Published

2004-02-20

(72)

Inventor

Nazmiev I.M.Shajdullin F.D.Galljamov I.M.Vakhitova A.G.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Neftjanaja Kompanija

HETEROGENEOUS PETROLEUM LAYER DEVELOPMENT GOVERNING METHOD Russian patent published in 2004 - IPC

Abstract RU 2224092 C1

FIELD: adjusting heterogeneous layers permeability by means of chemical reagents. SUBSTANCE: method includes consecutive pumping of unleavened water, alkali water solution, hydrochloric aluminum water solution, supplying said components under pressure from water, petroleum extraction through extraction wells. Alkali water solution is supplied together with polydymethyldyalammonium chloride. For supplying hydrochloric aluminum water solution mineralized drainage water is used. Pumping of alkali water solution and hydrochloric aluminum water solution is possible in relationship 1:1. EFFECT: increased petroleum layer productiveness, decreased amount of water in extracted petroleum. 2 cl, 1 dwg, 1 tbl, 3 ex

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RU 2 224 092 C1

Authors

Nazmiev I.M.

Shajdullin F.D.

Galljamov I.M.

Vakhitova A.G.

Dates

2004-02-20—Published

2002-07-10—Filed

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