FIELD: oil production, particularly devices for bottomhole formation zone treatment, as well as for oil-producing and water-injection well screen cleaning.
SUBSTANCE: device comprises liquid supply pipeline, which delivers liquid in well, pneumatic generator, compressed gaseous agent supply pipeline provided with shutoff fittings and compressed gaseous pipeline discharge system provided with shutoff members. Pneumatic generator includes head with through cross-section including discharge orifice with end wall installed so that opened end thereof is arranged on well. The head is provided for compressed gas supply via compressed gaseous agent supply pipelines. Shutoff fittings of gaseous agent supply pipeline are of quick-operating type. In the second embodiment hollow head comprises at least one accelerating nozzle for compressed gaseous agent supply.
EFFECT: increased cleaning quality and improved ecological safety.
41 cl, 4 dwg
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