DOWNHOLE ULTRASONIC WELL CLEANING DEVICE

摘要

A cleaning apparatus for a subterranean formation or wellbore where caking of particles may affect productivity characterized in that it requires no external electrical source and includes and ultrasonic energy sonde (3) for alternating electric power signal at a selected voltage into ultrasound energy; At least one ultrasonic generator (2) that conditions electrical power to the signal required to energize the ultrasonic energy sonde, a piezoelectric generator (1), in a configuration and with appropriate circuitry to provide electrical power to said ultrasonic generator(s); and a means for applying mechanical force to said electricity generator.