PLUGGING MATERIAL WITH CONTROLLED KINETICS OF EXPANSION Russian patent published in 2014 - IPC C09K8/467 

FIELD: chemistry.

SUBSTANCE: invention relates to the oil and gas industry and in particular to the field of obtaining special cements, namely to plugging materials for consolidation of oil and gas wells. A plugging material with controlled kinetics of expansion includes plugging Portland cement, an expanding component, additionally contains hydrophobisator sodium oleate or potassium oleate, with the said hydrophobisator being preliminarily mixed with the expanding component with the following component ratio, wt %: plugging Portland cement - 85-95, expanding component - 4.975-14.5, sodium oleate or potassium oleate - 0.025-0.5.

EFFECT: creation of the plugging material with controlled kinetics of expansion.

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