FIELD: equipment for perforation of producing formations in development and exploratory oil and gas wells; applicable in establishment of channels and slots in wells with open bottom hole and cased wells, and in cutting-out of casing strings and expansion of bottom hole in open wells. SUBSTANCE: hydraulic abrasive jet perforator has body, guide jet nozzles with similar working cross-sections, valve and shank. Jet nozzles are made with variable wear resistance. Jet nozzle with maximum wear resistance is located in the lower part of the perforator. EFFECT: provision of similar shooting capabilities of jet nozzles by perforator height and uniform wear of their working section. 1 dwg
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