FIELD: shooting-blasting operation by jet perforators in oil and gas wells.
SUBSTANCE: the shaped charge has a body accommodating a profiled blasting cartridge having a taper-shaped recess with a metal facing. For forming the profiled blasting cartridge use is made of a salvaged explosive based on octogen with granules measuring from 1 to 5 mm and with the following granulometric relation of particles, mass percent: granules from 1 to 3 mm - 30...40; granules from 3 to 5 mm - 60...70, the explosive together with the facing is pressed in the body.
EFFECT: enhanced depth of duct punching, formation of a stable shaped jet.
1 dwg, 1 tbl
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