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2 147 671

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C1

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IPC

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Application

98100629/03, 1998-01-15

(24)

Start date

1998-01-15

(22)

Actual filing date

1998-01-15

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Published

2000-04-20

(72)

Inventor

Khlebnikov V.N.Almaev R.Kh.Asmolovskij V.S.Sajfutdinov F.Kh.Bazekina L.V.

(73)

Holder

Aktsionernaja Neftjanaja Kompanija

COMPOUND FOR CONTROL OF FORMATION PERMEABILITY AND WATER SHUTOFF Russian patent published in 2000 - IPC

Abstract RU 2147671 C1

FIELD: oil-producing industry, particularly, compounds for control of formation permeability and water shutoff; applicable for raising of oil recovery from nonuniform oil formations. SUBSTANCE: compound contains water-soluble polymer of polyacrylamide type or carboxymethyl cellulose or hydrolyzed nitrile fiber, sodium humate and water with the following ratio of components, wt. %: sodium humate, 0.3-3.0; water-soluble polymer of polyacrylamide type, or carboxymethyl cellulose, or hydrolyzed nitrile fiber, 0.01-2.5; water, the balance. EFFECT: higher efficiency of formation treatment. 1 cl, 6 tbl, 4 ex

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RU 2 147 671 C1

Authors

Khlebnikov V.N.

Almaev R.Kh.

Asmolovskij V.S.

Sajfutdinov F.Kh.

Bazekina L.V.

Dates

2000-04-20—Published

1998-01-15—Filed

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