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2 245 990

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IPC

(21) (22)

Application

2003126938/03, 2003-09-05

(24)

Start date

2003-09-05

(22)

Actual filing date

2003-09-05

(45)

Published

2005-02-10

(72)

Inventor

Gnoevykh A.N.Gejkhman M.G.Rjabokon' A.A.Konovalov E.A.Frolov A.A.Urosov S.A.Krivoborodov Ju.R.Kuznetsova T.V.Kljusov I.A.

(73)

Holder

Dochernee Obshchestvo S Ogranichennoj Otvetstvennost'Ju Kompanija Otkrytogo Aktsionernogo Obshchestva

PLUGGING COMPOSITION Russian patent published in 2005 - IPC

Abstract RU 2245990 C1

FIELD: oil and gas production.

SUBSTANCE: Portland cement-based composition contains, wt %: polymer 1-10, hardening accelerator 6-8. plasticizer 0.3-0.5, alumina cement 7-10, gypsum dihydrate and/or anhydrite 5-8, said polymer being selected from the group comprising: polyacrylamide, hydrolyzed polyacrylonitrile, polyvinyl alcohol, organosilicon liquid, latex and cationic bitumen emulsion, and said hardening accelerator being alkali or alkali-earth metal sulfates or chlorides.

EFFECT: improved properties, reduced shrinkage deformations, and under conditions resistance to fissuring.

2 cl, 2 tbl

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RU 2 245 990 C1

Authors

Gnoevykh A.N.

Gejkhman M.G.

Rjabokon' A.A.

Konovalov E.A.

Frolov A.A.

Urosov S.A.

Krivoborodov Ju.R.

Kuznetsova T.V.

Kljusov I.A.

Dates

2005-02-10—Published

2003-09-05—Filed