FIELD: oil and gas industry. SUBSTANCE: improvement of collector properties of oil-gas stratum and elimination of casing string breakage can be ensured by method which implies pumping of working fluid into stratum and firing explosive charges at pressure higher than stratum pressure. Explosions are performed repeatedly. Auxiliary charge of lighter mass if fires before each main charge. Detonation velocity is taken as equal to maximum in conditions when working fluid pressure at bottom hole is equal to atmospheric pressure. Main charge is exploded at bottom hole pressure allowing for creation of working fluid pressure in stratum which exceeds stratum pressure. Mass of explosive material increases from fire to fire, and detonation velocity varies. EFFECT: high efficiency.
