FIELD: mining industry, particularly, organization of cleaning of wellbores in drilling of well horizontal sections. SUBSTANCE: method includes carrying out of drilled rock by drilling mud through drill string-borehole annular space. Created in annular space, in interval of well horizontal section, during drilling is radial motion of drilling mud to provide for cuttings lifting to upper part of radial section of annular space corresponding to motion of main part of drilling mud flow. EFFECT: higher drilling efficiency due to fuller cleaning of wellbores. 2 dwg
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