METHOD OF ACTION APPLICATION TO OIL POOL FLUID DURING OIL PRODUCTION Russian patent published in 2006 - IPC E21B43/16 

FIELD: oil production industry, particularly enhanced recovery methods for obtaining hydrocarbons.

SUBSTANCE: method involves lowering resonance-wave device in well; creating oscillations with predetermined frequency in oil fluid to be treated within oil production zone. The resonance-wave device is submersed in one of wells drilled in area to be treated. Movable resonance modules, wave conductors and loops are arranged on resonance-wave device surface. Oscillations are directly created in oil fluid to be treated by forming carrier electromagnetic waves within frequency range of from 3-10^-5 to 3-10¹⁴ Hz or ultrasound waves within frequency range of from 1.5-10⁴ to 10⁹ Hz or acoustic waves within frequency range of from 17 Hz to 20 kHz. The waves are modulated by information signals, which are resonant with hydrocarbons of oil fluid to be treated and are converted into standing waves.

EFFECT: improved oil output due to increased oil recovery ratio and oil production rate, increased oil quality and flow (kinetic) properties, increased volume of fluid to be extracted along with decreased water content in the fluid.

1 ex