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2 036 298

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C1

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IPC

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Application

92010449/03, 1992-12-08

(22)

Actual filing date

1992-12-08

(45)

Published

1995-05-27

(72)

Inventor

Bortsov V.P.Negomedzjanov V.R.Vertoprakhova L.A.Koshelev A.T.Denisov V.S.Dobrjanskij V.G.

(73)

Holder

Zapadno-Sibirskij Nauchno-Issledovatel'Skij Institut Neftjanoj Promyshlennosti

BRIDGING COMPOSITION Russian patent published in 1995 - IPC

Abstract RU 2036298 C1

FIELD: construction of wells for gas and oil. SUBSTANCE: bridging composition contains portland cement and overburden rocks of asbestos deposit. Overburden rock of asbestos deposit is used in the amount of 4.76-9.09% of bridging composition mass. EFFECT: higher efficiency. 1 tbl

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RU 2 036 298 C1

Authors

Bortsov V.P.

Negomedzjanov V.R.

Vertoprakhova L.A.

Koshelev A.T.

Denisov V.S.

Dobrjanskij V.G.

Dates

1995-05-27—Published

1992-12-08—Filed

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