Well boring with blasting agents

Details Well boring with blasting agents Well boring with blasting agents

F - Mech Eng,Light,Heat,Weapons

42

D

F42D 1/055 (2006.01) E21B 43/1185 (2006.01) F42D 1/05 (2006.01)

Patent

CA 2282324

The invention pertains to a well (1) boring method (10) involving the use of blasting agents, whereby drillings are made at various successive levels (12, 13), for each of which a plurality of blasting charges (16) are provided. To each level corresponds an addressable switch (14) which, when in a position of rest, powers on the ignition circuit (11) and, when in an operating position, isolates said ignition circuit to connect it to an ignition control device (15) for the corresponding boring level.

L'invention concerne un système de forage (10) de puits (1) à l'explosif (10). Selon ce système, les forages sont effectués en différents niveaux successifs (12, 13), pour chacun desquels sont prévues plusieurs charges (16). A chaque niveau correspond un commutateur adressable (14) qui, en position de repos, branche le circuit d'allumage (11) et, en position de travail, sépare ledit circuit d'allumage pour le raccorder à un dispositif de commande d'allumage (15) pour le niveau de forage correspondant.

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