GEAR FOR THERMAL-GAS-ACIDIC TREATMENT OF PRODUCTIVE POOLS Russian patent published in 2002 - IPC

FIELD: oil industry. SUBSTANCE: gear is related to equipment designed to intensify production of oil. For thermal-gas-acidic treatment there is used slow-burning pyrotechnic composition made in the form of cylindrical blasting cartridges. Blasting cartridges burn from end face. Two lowest blasting cartridges are placed in heat and temperature-resistant body of gas producer and have electric igniters. Body has nozzle-like holes. Acidic solution in leak-tight package is located in bottom of tail part. With supply of current from surface to electric igniters two lowest blasting cartridges start to burn. Container made in the form of tubing string is placed on top of body of gas producer. Container houses some blasting cartridges and weight of same form put on them. As lower blasting cartridges burn blasting cartridges positioned above are automatically fed into burning zone, leak-tight package with acidic solution melts and corrosive gases and acid stream downwards into cracks and pores of stratum washing away asphaltenes and resins. EFFECT: raised efficiency of thermal-gas-acidic treatment of productive pool. 1 dwg