METHOD OF BITUMEN PRODUCTION FROM UNDERGROUND DEPOSIT Russian patent published in 2008 - IPC E21B43/24 

FIELD: mining.

SUBSTANCE: method involves drilling and commissioning injection well ending with a horizontal site in the deposit, and production well with horizontal site ending in the deposit at the level lower than the injection well, creating a permeable area between injection and production wells, injecting heat carrier to the injection well and simultaneous hydrocarbon withdrawal over the production well. According to the invention, horizontal site of the injection well is oriented towards the production well, its length comprising 95-99% of the distance between the wells. Horizontal site of the production well is oriented towards the injection well and its length comprises 95-99% of the distance between the wells. Permeable zone is created between the horizontal sites of injection and production wells by sequential fracturing and injecting horizontal propping agent layer in each horizontal site before the beginning of well operation, and by additional heating deposit by means of heat carrier injection to the injection and production wells for 2-6 months.

EFFECT: streamlined process and improved deposit production efficiency due to expanded coverage area of underground bitumen deposit.

2 dwg