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2 144 978

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IPC

(21) (22)

Application

97106290/03, 1997-04-17

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Start date

1997-04-17

(22)

Actual filing date

1997-04-17

(45)

Published

2000-01-27

(72)

Inventor

Ganiev R.R.Luk'Janova N.Ju.Ramazanov R.G.Ibragimov R.G.Khlebnikov V.N.Mukhametzjanova R.S.Lenchenkova L.E.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Aktsionernoe Obshchestvo Otkrytogo Tipa

GEL-FORMING COMPOSITION Russian patent published in 2000 - IPC

Abstract RU 2144978 C1

FIELD: oil-producing industry, particularly, compositions for regulation of formation permeability, water shutoff and major repairs of wells. SUBSTANCE: gel-forming composition has the following components, wt.%: high-alumina cement, 5-10; hydrochloric acid, 10-95; water-soluble nonionic and cationic surfactants, 0.2-0.3; water, the balance. The composition is used in the form of high-alumina cement. Regulator of gelling rate is used in the form of water-soluble nonionic and cationic surfactant and also corrosion inhibitors based on cationic surfactants. Hydrochloric acid used in composition contains at least 5% of hydrogen chloride. EFFECT: higher efficiency and workability due to regulated gel-forming time. 3 cl, 2 tbl

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RU 2 144 978 C1

Authors

Ganiev R.R.

Luk'Janova N.Ju.

Ramazanov R.G.

Ibragimov R.G.

Khlebnikov V.N.

Mukhametzjanova R.S.

Lenchenkova L.E.

Dates

2000-01-27—Published

1997-04-17—Filed

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