FIELD: oil production industry, particularly for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffin or like substances.
SUBSTANCE: method involves using audio-frequency noise generated during immersed centrifugal electric pump operation as energy source for sound generator, wherein acoustic vibration source is quarter-wave resonator arranged under immersed centrifugal electric pump in paraffin accumulation zone; converting longitudinal waves of audio-frequency noise of the pump into ultrasonic standing waves with the use of quarter-wave resonator, wherein ultrasonic standing waves are created in sound generator area in direction transversal to gas-and-liquid flow movement direction; moving paraffin crystals precipitating from gas-and-liquid mixture away from tubing string walls towards gas-and-liquid mixture flow center by applying sound pressure of standing-wave crest; coagulating paraffin crystals and washing out thereof with oil to ground surface.
EFFECT: provision of uninterrupted well operation.
7 dwg
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