USE OF COMPOSITION FOR STABILIZATION OF GEOLOGICAL FORMATIONS IN OIL DEPOSITS, GAS DEPOSITS, ON PUMPING SITES OF WATER, DURING EXTRACTION OF MINERALS OR CONSTRUCTION OF TUNNELS Russian patent published in 2020 - IPC C09K8/44 C09K17/30 E02D3/12 

FIELD: chemistry; geology.

SUBSTANCE: group of inventions relates to use of composition for stabilizing geological formation in oil deposits, gas deposits, at pumping sites of water, during extraction of minerals or construction of tunnels. Application of composition for stabilization of geological formation in oil deposits, gas deposits, on pumping sites of water, during extraction of minerals or construction of tunnels, containing (a) polyisocyanate, (b) a mixture obtained by mixing a salt selected from halide, cyanide, nitrate, sulphate, hydrosulphate, sulphite, hydrosulphite, carbonate, hydrocarbonate, phosphate, hydrophosphate, dihydrogen phosphate, carboxylate, sulphonate or amidosulphonate of alkali metal or from halide, hydrosulphate or alkali-earth metal nitrate, with a compound obtained by reacting polyisocyanate (a1) with a compound having one or more hydroxy groups, and (c) a compound containing an epoxy group. Inventions are developed in dependant claims.

EFFECT: technical result is creation of composition with sufficient viability at high temperatures, for example at 80–100 °C, and capable of quickly hardening at said temperature range.

22 cl, 4 dwg, 4 tbl, 6 ex