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2 204 694

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IPC

(21) (22)

Application

2001123961/03, 2001-08-30

(24)

Start date

2001-08-30

(22)

Actual filing date

2001-08-30

(45)

Published

2003-05-20

(72)

Inventor

Kuznetsova T.V.Krivoborodov Ju.R.Samsonenko V.I.Samsonenko N.V.Samchenko S.V.

(73)

Holder

Kuznetsova Tamara Vasil'EvnaKrivoborodov Jurij RomanovichSamsonenko Vladimir IvanovichSamsonenko Natal'Ja VladimirovnaSamchenko Svetlana Vasil'Evna

GROUTING COMPOSITION Russian patent published in 2003 - IPC

Abstract RU 2204694 C2

FIELD: well construction; applicable in production of grouting materials for cementing and casing of oil, gas and other wells. SUBSTANCE: grouting composition includes oil-well portland cement, expanding additive and surfactant. Expanding additive is used in the form of sulfoaluminate-line sinter, and surfacant in the form of sodium abietate, and additionally, heat-treated clay. Grouting composition contains the following ratio of ingredients, wt.%: oil-well portland cement, 49-74.9; sulfoaluminate-lime sinter, 5-20; sodium abietate, 0.1-1.0; heat-treated clay, 20-30. EFFECT: high water tightness of cement stone and adhesion strength of grouting composition. 2 tbl

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RU 2 204 694 C2

Authors

Kuznetsova T.V.

Krivoborodov Ju.R.

Samsonenko V.I.

Samsonenko N.V.

Samchenko S.V.

Dates

2003-05-20—Published

2001-08-30—Filed