FIELD: oil industry.
SUBSTANCE: perforator has linear cutting charge, initiating means for detonation of cutting charge. Perforator also has at least one cumulative charge with initiating means. Linear cutting charge is made for cutting of perforation aperture in casing string. Cumulative charge is made for forming of deep-going stream, passing through perforation aperture in casing string. According to second variant as cutting charge cumulative charge is used. According to method perforation apertures are broken through concurrently in casing pipes and in an area, surrounding oil well. For this well perforator is placed according to one variant of device into oil well in place, where it is necessary to break an aperture, and perforator detonation is initiated.
EFFECT: higher efficiency.
4 cl, 4 dwg
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