WELL COMPLETION METHOD Russian patent published in 1999 - IPC

FIELD: oil production industry. SUBSTANCE: method is used in opening of productive beds in oil and gas wells. According to method, installed in casing string are shaped charge and gas-generating charge made of solid fuel and chemical reagent. Gas-generating charge is initiated for action by shaped charge. Perforated passage is made in casing string and in surrounding productive bed. Introduced into perforated passage is gas created at burning of gas-generating charge, then chemical reagent is delivered into perforated passage. Used in function of chemical reagent is acid reagent. Application of aforesaid method ensures increased output capacity of wells due to added filtration area of perforated passages. EFFECT: higher efficiency. 1 dwg