METHOD OF WELL COMPLETION Russian patent published in 2001 - IPC

FIELD: mining industry; applicable in tapping of pay formations of oil and gas wells. SUBSTANCE: in completion of well, installed into casing string is jet charge and gas-generating charge from solid fuel and acid reagent with subsequent initiation of gas-generating charge by jet charge. Perforation channels are made in casing string and supporting producing formation with displacement through perforation channels of gas formed in burning of gas-generating charge, and acid reagent. Solid fuel and source of acid reagent are combined. Simultaneous displacement of gas formed in burning of gas-generating charge and acid reagent is effected into perforation channels. Solid fuel and source of acid reagent are used in the form of mixture of ammonium perchlorate, ammonium difluoride and epoxy compound with the following ratio of components, wt.%: ammonium perchlorate, 30-45; ammonium difluoride, 45-65; epoxy compound, 5-10; or in the form of mixture of ammonium nitrate, ammonium difluoride, ammonium chloride and epoxy compound with the following ratio of components, wt.%: ammonium nitrate, 30-35; ammonium difluoride, 45-50; ammonium chloride, 17-20; epoxy compound, 3-5. EFFECT: higher productivity of oil and gas wells due to increased efficiency of acid reagent. 1 dwg