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2 257 464

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IPC

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Application

2004109808/03, 2004-03-23

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Start date

2004-03-23

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Actual filing date

2004-03-23

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Published

2005-07-27

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Inventor

Garejshina A.Z.Akhmetshina S.M.Khisamov R.S.Zakharchenko T.A.Khisamutdinov A.I.Farkhutdinov R.M.Shesternina N.V.Khazanov I.V.Matveev S.E.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Im. V.D. Shashina Oao Im. V.D. ShashinaOtkrytoe Aktsionernoe Obshchestvo Institut Po Neftepromyslovoj Khimii" Oao

COMPOSITION FOR DEVELOPMENT OF NON-UNIFORMLY PERMEABLE OIL FORMATION Russian patent published in 2005 - IPC

Abstract RU 2257464 C1

FIELD: oil and gas production.

SUBSTANCE: invention, in particular, relates to watered non-uniformly permeable oil formations. Composition is composed of polyacrylamide, 0.65-0.9%, cellulose-containing material, 4.0-6.0%, and water, said polyacrylamide being of biological origin and produced by bacteria Rhodococcus rhodochrousthe balance.

EFFECT: increased oil recovery from nonuniform formations.

1 tbl, 16 ex

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RU 2 257 464 C1

Authors

Garejshina A.Z.

Akhmetshina S.M.

Khisamov R.S.

Zakharchenko T.A.

Khisamutdinov A.I.

Farkhutdinov R.M.

Shesternina N.V.

Khazanov I.V.

Matveev S.E.

Dates

2005-07-27—Published

2004-03-23—Filed