ELECTROHYDROIMPULSIVE DOWNHOLE DEVICE Russian patent published in 2008 - IPC E21B43/25 E21B28/00 

FIELD: mining; electricity.

SUBSTANCE: borehole generator consists of charging and high-voltage units. Charging unit consists of low-voltage rectifier, inverter with input throttle and switching circuit and control unit for commutator. Switching circuit of inverter is implemented in single structural-processing component corresponding two conducting armatures close-coiled and separated by dielectric. High-voltage radio-frequency transformer and high-voltage rectifier are constructively introduced into high-voltage unit contain. There are presented two versions of conducting armatures connections to low-voltage rectifier and commutator. Invention allows abatement of separately implemented components of resonant circuit inductance and capacity and also separately implemented primary winding of high-voltage radio-frequency transformer, because their function are made by armatures of single structural-processing component.

EFFECT: rising of oil-and-gas output of productive stratums of oil and gas wells in the issue of influence for them by energy of shock wave.

2 cl, 2 dwg