METHOD FOR TREATING BOTTOM-HOLE ZONE OF WELL Russian patent published in 1999 - IPC

FIELD: oil production industry. SUBSTANCE: method can be used in operations aimed at intensification of productive capacity of wells. According to method, lowered to bottom-hole of well by string of pump-compressor pipes is perforated container containing aluminium pipes filled with alkali metal or with alloy of alkali metal. Used in this case are continuous aluminium pipes rolled up at ends for isolation from water. Acid solution is pumped through string of pump-compressor pipes, and container and annular space at bottom-hole of well are filled with acid solution. Technological delay is undertaken until aluminium pipes are destructed. Contacting of well liquid and alkali metal takes place in acid well liquid. EFFECT: higher efficiency.