FIELD: oil production industry, particularly for oil field development and water and ore borehole cleaning.
SUBSTANCE: method involves placing at least one reflecting barrier and acoustic irradiator having disc-shaped irradiating member with flat irradiating surfaces in perforation zone of casing string; localizing created acoustic field at least in one volume defined by irradiating member, casing pipe walls and reflecting barrier, wherein irradiating and reflecting surfaces are arranged transversely to casing pipe axis. Distance between irradiating and reflecting surfaces is equal to integer number of half-wave lengths in borehole liquid on working frequency of acoustic irradiator. This provides acoustic irradiation resonance inside the localization volume.
EFFECT: increased intensity of acoustic irradiation in bottomhole formation zone inside casing pipe and in vicinity of borehole.
2 cl, 1 ex, 1 dwg
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