EMITTER FOR ACOUSTIC ACTION ON BOTTOMHOLE ZONE OF OIL WELLS Russian patent published in 2020 - IPC E21B43/25 E21B28/00 

FIELD: oil industry.

SUBSTANCE: invention relates to oil industry and is intended for treatment of productive zones of oil, gas and water wells. Acoustic radiator has a housing with a chamber communicating with the well medium and a sealed evacuated chamber filled with electrically insulating liquid and containing magnetostrictive converters with windings connected in series. Electrical connection of magnetostrictive transducers with geophysical head is performed by means of geophysical electric leads. At that, magnetostrictive converters are fixed by retaining brackets providing mobility, and are fixed on the housing through the common plank. Sealed evacuated chamber is equipped with a pressure compensator in the form of a piston mechanism and a cavity configured to accommodate geophysical sensors.

EFFECT: technical result is higher reliability of emitter.

3 cl, 2 dwg