FIELD: oil output stimulation, particularly pulsed productive bed and well screen treatment.
SUBSTANCE: vibratory device comprises cavitational liquid pressure oscillation generator made as Venturi tube. The Venturi tube has diffuser with cone angle exceeding 15°, inlet nozzle and transition section connecting the diffuser with the inlet nozzle. Generator also comprises barrel having inner channel. Inner channel diameter is not less than 4 inlet nozzle diameters. Transition section between Venturi tube and inlet nozzle has radius of not greater than 200 μm.
EFFECT: increased reliability and efficiency of vibro-wave productive bed and well screen treatment during recovery thereof.
2 cl, 2 dwg
