METHOD OF TREATMENT OF WELL BOTTOM-HOLE ZONE Russian patent published in 2003 - IPC

FIELD: oil producing industry; applicable in work involved in intensification of well production rate. SUBSTANCE: used in embodiment of method is sealed container accommodating alkaline, alkaline-earth metal or alloy on its base, enclosed in waterproof shell and explosive substance electrically connected with cable. Holes of sealed container body are provided with plugs removable outside under action of built-up pressure inside sealed container. Explosive charge is selected for building-up, after explosion, of shock wave required for breakage of waterproofing shell and evolving the required amount of gases for building up of pressure inside sealed container exceeding that at bottom-hole. Sealed container is lowered to well bottom-hole on cable. Opening of sealed container, explosion of explosive substance and removal outside of plugs from holes of sealed container body are accomplished with the help of electric current supplied by cable. EFFECT: higher technological effectiveness of method and its increased efficiency. 1 ex