FIELD: chemistry.
SUBSTANCE: way of cementing includes: providing a pozzolanic suspension containing pozzolane and water in an amount of 33 wt % to 200 wt % by weight of pozzolan; providing a calcareous suspension containing slaked lime and water in an amount of 33 wt % to 200 wt % by weight of lime; providing the possibility of separate storage of pozzolanic suspension and calcareous suspension for about one day or more; mixing the pozzolanic suspension and the calcareous suspension to form a cement composition. Mass ratio of pozzolans for lime is from 10:1 to 1:1; and the possibility of setting cement compositions. The invention also relates to a method of fluid displacement in the underground reservoir and cementing system. The invention is developed in dependent claims of the formula of the invention.
EFFECT: activation of cement compositions with delayed term of setting while maintaining an acceptable time and starts development of compressive strength.
20 cl, 15 tbl, 3 dwg
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