FIELD: mining.
SUBSTANCE: group of inventions relates to mining and can be used in formation hydraulic fracturing. Described is explosive granule for fracture description in underground formation. Granule can contain housing, containing detonating substance and explosive substance, located inside housing. Granule can also contain non-explosive substance, movably arranged inside housing. Non-explosive substance motion can by friction develop specified amount of heat, sufficient for explosive substance detonation.
EFFECT: technical result consists in improvement of hydraulic fracturing and description of fracture in underground formation efficiency.
20 cl, 14 dwg
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