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2 136 878

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Application

99100001/03, 1999-01-05

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Start date

1999-01-05

(22)

Actual filing date

1999-01-05

(45)

Published

1999-09-10

(72)

Inventor

Zazirnyj D.V.Mamedov B.A.Sharifullin F.A.Dzhafarov I.S.Osipov M.L.

(73)

Holder

Mamedov Boris AbdulovichZazirnyj Dmitrij VladimirovichSharifullin Farid Abdullovich

COMPOUND FOR SELECTIVE ISOLATION OF WATER INFLOWS IN OIL WELLS Russian patent published in 1999 - IPC

Abstract RU 2136878 C1

FIELD: oil production industry. SUBSTANCE: compound can be used for partial selective isolation of water-bearing part of productive oil bed. Compound has following components: polyacrylamide 0.5-2.0%, condensed sulphite-alcohol residue or lignosulphonate 0.75-1.5%, sodium or potassium bichromate 0.02-0.05%, wood flour 1.0-4.0%, sodium silicate 2.0-8.%. Application of aforesaid compound increases efficiency of isolating water inflows together with improvement of collecting properties of oil part of productive bed. EFFECT: higher efficiency. 2 tbl

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RU 2 136 878 C1

Authors

Zazirnyj D.V.

Mamedov B.A.

Sharifullin F.A.

Dzhafarov I.S.

Osipov M.L.

Dates

1999-09-10—Published

1999-01-05—Filed

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