EXPANSION COMPOSITION FOR GROUTING MORTAR Russian patent published in 2010 - IPC C09K8/467

Abstract RU 2387690 C1

FIELD: oil and gas production.

SUBSTANCE: expansion composition for grouting mortar, containing magnesite caustic powder and a softener, as said softener contains high-range water reducer "Polyplast-SP-1" and additionally a coagulant - "Aqua-Aurat" in the following ratio, wt %: magnesite caustic powder 94.0-99.5, high-range water reducer "Polyplast-SP-1" 0.1-2.0, coagulant - "Aqua-Aurat" 0.4-4.0.

EFFECT: improved quality of well casing.

2 ex, 2 tbl

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RU 2 387 690 C1

Authors

Rjabova Ljubov' Ivanovna

Dates

2010-04-27—Published

2008-12-16—Filed