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2 357 998

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(51)

IPC

C09K8/467(2006-01-01)

(21) (22)

Application

2007131168/03, 2007-08-15

(24)

Start date

2007-08-15

(22)

Actual filing date

2007-08-15

(45)

Published

2009-06-10

(72)

Inventor

Altunina Ljubov' KonstantinovnaKuvshinov Vladimir AleksandrovichStas'Eva Ljubov' Anatol'EvnaFilin Vjacheslav Vasil'Evich

(73)

Holder

Institut Khimii Nefti Sibirskogo Otdelenija Rossijskoj Akademii Nauk

GROUTING COMPOUND FOR CASING STRING CEMENTING Russian patent published in 2009 - IPC C09K8/467

Abstract RU 2357998 C2

FIELD: construction.

SUBSTANCE: grouting compound for cementing casing string includes, wt % tempering fluid - gel-forming composition dissolved 7-20 times containing, wt %: aluminium chloride 2-8, carbamide 8-30 and water being the rest of the compound and at the ratio of the said tempering fluid to Portland cement 0.5.

EFFECT: reduced fluid permeability of grouting compound and improved strength.

6 ex, 1 tbl

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RU 2 357 998 C2

Authors

Altunina Ljubov' Konstantinovna

Kuvshinov Vladimir Aleksandrovich

Stas'Eva Ljubov' Anatol'Evna

Filin Vjacheslav Vasil'Evich

Dates

2009-06-10—Published

2007-08-15—Filed