CREATING OF SOME SPECIAL DOWNHOLE EQUIPMENT FOR METHANE-COAL WELLS WHERE HYDRAULIC FRACTURING OF PRODUCTIVE STRATA WAS CARRIED OUT
The article describes design and installation method of a set of some special downhole equipment in production drill pipe string of a coal-methane well below perforation interval after carrying out hydraulic fracturing of productive strata. Advantages to be reached while this equipment usage during coal-methane well development are proved.