DOWNHOLE HYDROACOUSTIC GENERATOR (VERSIONS) Russian patent published in 2002 - IPC

FIELD: equipment designed for well completion and intensification of oil inflow, complex treatment of producing formation of producing well with use of hydroacoustic wave energy. SUBSTANCE: downhole hydroacoustic generator has body, vortex chamber with tangential channels, chamber of preliminary swirling of flow with tangential channels. Tangential channels of vortex chamber and chamber of flow preliminary swirling have same rotation direction. hydroacoustic generator is made for sectionalizing and regulation of radiation direction. EFFECT: reduced hydraulic losses in device, higher hydroacoustic power, intensified oil inflow due to generation and action of powerful hydroacoustic energy of directed radiation and modulated waves. 6 cl, 7 dwg