FIELD: oil and gas industry.
SUBSTANCE: downhole equipment for the polyfrequency wave treatment of the bottom-hole zone of the productive formation includes a jet pump with a nozzle chamber, a valve-relay, a flowrate oscillations generator under the packer on the pipe string at the depth of the perforation interval, hydromechanical radiator of elastic vibrations, installed in the formation interval above the input channels of the generator. The jet pump has a hydraulic accumulator. The valve-relay has a hydraulic check valve, and is installed under the jet pump, and the generator is made in the form of the hydrodynamic generator of relaxation flowrate self-oscillations.
EFFECT: increased radius of the formation treatment, increased degree and quality of the formation cleaning and intensification of the oil/gas inflow.
19 cl, 7 dwg
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