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2 168 004

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C1

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Application

2000115003/13, 2000-06-14

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Start date

2000-06-14

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Actual filing date

2000-06-14

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Published

2001-05-27

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Inventor

Vlasov S.A.Kagan Ja.M.Polishchuk A.M.Kudrjashov B.M.Brezitskij S.V.Dzhafarov I.S.Ignatko V.M.Gafiullin M.G.Marichev F.N.Rjazanov A.P.Simonov O.V.Svikov A.N.

(73)

Holder

Nauchno-Tekhnicheskoe Ob"Edinenie Inzhenernoj Akademii Rf

COMPOSITION FOR BIOPOLYMER ACTION ON OIL-WELL BOTTOM ZONES Russian patent published in 2001 - IPC

Abstract RU 2168004 C1

FIELD: biotechnological methods in oil and gas production. SUBSTANCE: water-based composition consists of (i) solution of exopolysaccharide, 2-5% produced by strain Azotobacter vinelandi (Lipman) in the form of culture broth and (ii) filler. The latter, in particular, is wood flour, 2-5%, whereas exopolysaccharide is used in combination with mixture of lauric and palmitic acids, 10-15%. Composition selectively increased filtration resistance to water flow in high-permeability watered interbeds. EFFECT: increased oil recovery. 2 tbl, 2 ex

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RU 2 168 004 C1

Authors

Vlasov S.A.

Kagan Ja.M.

Polishchuk A.M.

Kudrjashov B.M.

Brezitskij S.V.

Dzhafarov I.S.

Ignatko V.M.

Gafiullin M.G.

Marichev F.N.

Rjazanov A.P.

Simonov O.V.

Svikov A.N.

Dates

2001-05-27—Published

2000-06-14—Filed

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