FIELD: gas and oil producing industry. SUBSTANCE: method for cleaning bottom-hole formation zone consists in injection of bath of stable foam with definite gas pressure in it. Installed on spray cone line is diaphragm rated for fracture pressure which does not exceed the sum of hydrostatic and hydrodynamic pressure of column of stable foam and displacing fluid. Pressure is built up by displacing foam to bottom hole, and pressure value should not exceed the sum of hydrostatic and hydrodynamic pressures during exposure of producing horizon. In this case diaphragm is ruptured and pressure drops. EFFECT: higher efficiency of cleaning due to cyclic action on formation of sign-variable loads. 1 tbl
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