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2 166 075

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IPC

(21) (22)

Application

99121355/03, 1999-10-12

(24)

Start date

1999-10-12

(22)

Actual filing date

1999-10-12

(45)

Published

2001-04-27

(72)

Inventor

Ibragimov N.G.Taziev M.Z.Taziev M.M.Salikhov I.M.Telin A.G.Khisamutdinov N.I.Singizova V.Kh.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie

COMPOSITION FOR TREATMENT OF BOTTOM-HOLE ZONES Russian patent published in 2001 - IPC

Abstract RU 2166075 C1

FIELD: oil producing industry, particularly, compositions for treatment of bottom-hole zones to increase well injectivity or productivity. SUBSTANCE: composition contains, mas.%: polycationite, no less, 0.17; nonionic surfactant, no less, 0.17; potassium chloride, 1.0-2.5; sodium, chloride, 2.5-4.0; water, the balance. Sylvinite mineral may be used instead of said chlorides. EFFECT: higher injectivity or productivity of wells after treatment of their bottom-holes. 2 cl, 3 tbl

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RU 2 166 075 C1

Authors

Ibragimov N.G.

Taziev M.Z.

Taziev M.M.

Salikhov I.M.

Telin A.G.

Khisamutdinov N.I.

Singizova V.Kh.

Dates

2001-04-27—Published

1999-10-12—Filed