GROUTING MORTAR Russian patent published in 1999 - IPC

Abstract RU 2136843 C1

FIELD: oil and gas production. SUBSTANCE: grouting mortar containing Portland cement (60.35-71.82%), special-type superplasticizer (0.21-0.36), and water is supplemented by water-soluble hydroxyethylcellulose-sulfacell (0.28-0.42%). EFFECT: improved insulation properties due to water loss of mortar and increased strength of resultant cement stone; and retained continuity of cement stone in annular space over all cementation region. 1 tbl

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RU 2 136 843 C1

Authors

Tsytsymushkin P.F.

Konovalov E.A.

Goronovich S.N.

Khajrullin S.R.

Tsytsymushkin A.P.

Dates

1999-09-10—Published

1997-04-28—Filed