METHOD FOR PROCESSING BOTTOM ZONE OF HORIZONTAL WELLS Russian patent published in 2006 - IPC E21B43/263 E21B43/18 

FIELD: oil extractive and mining industry, possible use during explosive operations in wells, in particular during gas-dynamic, chemical and thermal processing of bottom zone of horizontal and directional wells.

SUBSTANCE: in accordance to method, on tubing string thermo-gas-generator is lowered into well with solid fuel charges. Thermo-gas-generator is positioned in productive bed interval. Charges are burned with generation of gas having increased pressure and temperature. In accordance to invention, drilling tubes with apertures made in them are filled with charges, and then lowered into well one after another, and connected to one another at well mouth by means of sleeves. Adiabatic mechanism is connected to upper tube for igniting charges, and tubing pipe is connected too. Device is lowered and forced into horizontal portion of well. Adiabatic mechanism is initiated by forcing the ball by a portion of liquid or dropping a "crowbar". Activation of adiabatic mechanism is realized with instant compression and heating of air up to temperature of 800-900 K. Primary ignition charge is ignited by hot air, combustion products of aforementioned charge ignite intermediate and main solid fuel charges.

EFFECT: increased penetrability of well-adjacent bed zone, safe operations and safety of personnel, increased reliability of blast-through operations.