METHOD OF THERMAL PRODUCTION FOR SHALE OIL Russian patent published in 2014 - IPC E21B43/24 C10B53/06 E21B43/30 

FIELD: oil and gas industry.

SUBSTANCE: method lies in drilling of directional and vertical wells in shale oil deposit, creation of an ignited zone in them, combustion of a part of hydrocarbon stock, heating of the deposit with combustion products and stripping of shale kerogen in the form of products of shale oil thermal processing. At that a series of non-crossing slant wells directed to shale oil deposit is drilled; to the far end of slant wells igniting straight holes are drilled and oil shale is ignited at their bottom-holes thus creating modules of a slant and straight holes connected hydraulically. Drilled holes in oil shale are processed thermally by counterflow movement of the combustion source from igniting straight hole to the casing of a slant hole thus creating a channel with high drainage capacity. Casing-head tops of straight and slant holes are placed densely at the Earth surface.

EFFECT: maximum extraction of liquid fractions from shale oil deposits.

6 cl, 2 dwg