ACOUSTIC LOW-FREQUENCY GENERATOR Russian patent published in 2004 - IPC

FIELD: oil extraction industry. SUBSTANCE: proposed acoustic generator designed to produce flows of acoustic heavy-power low-frequency energy to enhance oil inflow to wells has sectionalized combustion chambers with covers and spherical internal surfaces, water tank accommodating stepped rod, and combined-cycle plant with compressor and electric generator. Acoustic generator is also provided with contracting-nozzle barrels and injectors arranged in tandem to inject mixture of hydrocarbon fuel vapors and vapors of electricity conducting liquid, and detonating injectors adjacent to them for injecting electricity conducting liquid which are communicating with combustion chambers. Vapor mixture injectors are provided with fuel spray nozzles and pipe connections accommodating augers, as well as with electrodes disposed in cylindrical chambers made of insulating material and communicating with nozzles tilted through certain angle to one another. In addition injectors for introducing mixture of vapors of hydrocarbon fuel and electricity conducting liquid are provided with explosion chambers incorporating contracting nozzles. EFFECT: enhanced amount of stratum-extracted oil, oil recovery factor, and rating of well. 1 cl, 11 dwg