PROCESSING METHOD OF INSULATION OF MINE WORKING AT THERMAL DEVELOPMENT OF OIL DEPOSITS Russian patent published in 2019 - IPC E21F5/00 E21F17/103 

FIELD: mining.

SUBSTANCE: invention relates to mining industry and can be used for insulation of mine workings, in development of deposits of high viscous oil and natural bitumen by thermo-seasoning method. Depth of rock deformation zone surrounding insulated mine opening is determined, a set of bore pits with length not less than the rock deformation zone depth is created in the isolation point, placing them in the form of a fan, in the roof of the mine working above the rock deformation zone pressure tank in the form of inclined wells drilled in the fan interval from the calculation so that it is hydraulically communicated with the inter-bridging space, is installed in insulated working of connection bridge with formation of inter-bridging space, differential pressure difference between the insulated space and the existing mine working is determined, insulating solution is injected into inter-brine space, bore pits and pressure tank to create pressure of static liquid column at the highest point of rock deformation zone equal to or higher than pressure drop in insulated space and in existing mine working, wherein said insulating solution used is a liquid plastic non-hardening solution containing a hydrocarbon component, the content of which in said solution is selected depending on the oil content of mine working rock.

EFFECT: higher technological efficiency of insulation of mine working at thermal development of oil deposits.

4 cl, 2 dwg