Abstract: The invention applies to the oil-producing industry and is intended for the intensification of processes increasing the yield of. oil wells developed by conventional methods during production of high viscosity oils. Both objects of said invention have as a technical result an increase in the permeability of a reservoir and a reduction in the viscosity of oil, added to an increase in environmental safety by avoiding use of chemical reagents and steam generators. First object of said invention applies a high power ultrasonic field in the well bottom 10 zone that reduces viscosity of oil, also heating said zone. Second object of said invention comprises a surface ultrasonic generator and at least one ultrasonic magnetostrictive radiator placed at end of oil well tubing, using high frequency currents that warm said tubing maintaining viscosity of oil during transport to the surface.

Abstract: An electro acoustic device and related method for increasing the production capacity of wells that contains oil, gas and/or water is disclosed. The electro acoustic device is submerged in the well producing zone, and includes an electric generator, one or more electro acoustic transducers, and one or more wave guide systems (sonotrodes) that include radiators which transmit vibrations into the medium under treatment. The electro acoustic device produces vibrations that stimulate the occurrence of mass transfer processes within the well. According to one or more embodiments, shear vibrations are produced in the well bore region due to the phase displacement of mechanical vibrations produced along the axis of the well, achieving alternate tension and pressure due to the superposition of longitudinal and shear waves.

Abstract: A device for transmitting ultrasonic energy to a liquid or pasty medium, comprising an alternating current generator (23) intended to operate in a frequency range of 1 to 100 kHz, a magnetostrictive or piezoelectric transceiver (12) capable of producing under the generator output AC voltage longitudinal high frequency mechanical vibrations, a waveguide (27) in the form of a cylindrical rod capable of being stimulated by said transceiver for generating longitudinal harmonic vibrations, and a cavity resonator (17) acoustically coupled with the waveguide and in a tubular form for converting said longitudinal harmonic vibrations into transversal vibrations relative to the longitudinal axis (14), the wave power of which can be injected into the medium to be submitted to sonicating. Said cavity resonator (11) is designed in such a way the resonance requirement is met both for the longitudinal and transversal self-vibrations of its envelope (18).