METHOD OF DELIVERY OF EXPLOSIVE DEVICES USING HORIZONTALLY DIRECTED DRILLING UNIT Russian patent published in 2015 - IPC F42D3/02 E21B7/04 

FIELD: mining.

SUBSTANCE: invention relates to anti-terror measures and can be used for selective blasting of buildings, reinforced structures and communications in urban conditions at maximum level of security of explosive team personnel. The explosive assembly is delivered under the blown-up object by the horizontally directed drilling (HDD) unit through the drilled well. The method of delivery of explosive assemblies by means of the horizontally directed drilling unit includes the erection of horizontally directed well under the object to be exploded and carrying out of drilling operations from the safe shelter. Delivery of the explosive assembly is performed by the drilling string consisting of drilling pipes, the string disconnector and the drilling tool, while the explosive assembly includes the special capsule placed with the drilling string, and explosive. The method can be used for initiating of explosions of low and average power.

EFFECT: invention allows to improve efficiency of explosive works and their safety.

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