FIELD: oil and gas producing industry, particular, devices for hydraulic abrasive jet perforation of wells; applicable in producing channels and slots in open and cased wells, cutting-out of casing strings, expansion of bottom holes in open wells, and installation of watertight barriers. SUBSTANCE: hydraulic abrasive jet perforator has body, guide jet nozzles, valve and shank. Jet nozzles are made with variable sectional area of working holes relative to one another. Nozzle with smallest sectional area is located in the lower part of perforator. EFFECT: simplified design allowing similar shooting capabilities of jet nozzles in height to provide for their uniform wear. 1 dwg
| Title | Year | Author | Number |
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