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2 026 959

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IPC

(21) (22)

Application

5059214/03, 1992-08-19

(22)

Actual filing date

1992-08-19

(45)

Published

1995-01-20

(72)

Inventor

Tsytsymushkin P.F.Karimov N.Kh.Khajrullin S.R.Kudrjashova Z.N.Belov I.V.Shamsiev R.A.

(73)

Holder

Volgo-Ural'Skij Nauchno-Issledovatel'Skij I Proektnyj Institut Po Dobyche I Pererabotke Serovodorodsoderzhashchikh Gazov

GROUTING MORTAR FOR CEMENTING OIL AND GAS WELLS Russian patent published in 1995 - IPC

Abstract RU 2026959 C1

FIELD: drilling of oil and gas wells. SUBSTANCE: grouting mortar for cementing oil and gas wells contains, mas.%: oil well cement 15.8-27.5; sodium chloride 3.8-6.1; fly ash with content of CaO+MgO from 6.66-9.60 13.2-19.3; cement dust from electrostatic precipitators of rotating cement kilns of cement plants 13.2-19.3; the balance, water. Oil well cement, fly ash and cement dust are mixed and the mixture is introduced into aqueous solution of sodium chloride. EFFECT: higher strength and corrosion resistance of produced stone. 1 tbl

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RU 2 026 959 C1

Authors

Tsytsymushkin P.F.

Karimov N.Kh.

Khajrullin S.R.

Kudrjashova Z.N.

Belov I.V.

Shamsiev R.A.

Dates

1995-01-20—Published

1992-08-19—Filed