METHOD FOR PRODUCING TAMPONATIVE SOLUTION Russian patent published in 2018 - IPC C09K8/467 E21B33/13 C04B22/08 C04B14/10 C04B103/10 

FIELD: construction.

SUBSTANCE: in method for producing a grouting fluid, which includes the mixing of cement, fly ash and bentonite followed by mixing with water mixing and liquid glass, use the fly ash from the combustion of fuel oil. The content of the components in wt % is cement 30-60, bentonite powder 3.3-5.0, fuel oil 15-55, and liquid glass with a density of 1.3-1.45 g/cm³ is used in an amount of 2.5-5% by volume. Mixing with the water of mixing is carried out with a water-hard ratio V/T 2-1.

EFFECT: obtaining a cheaper oil-well mortar by replacing the cement with ash from the combustion of fuel oil, acceleration of the setting and hardening of the ash-bentonite-cement mixture, increase the strength and stability of the properties of the composite solution, expand the area of utilization of wastes of man-made origin.

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