MODULAR PERFORATOR Russian patent published in 2017 - IPC E21B43/1185 

FIELD: construction.

SUBSTANCE: invention relates to cumulative hollow carrier perforators and is intended to perforate well walls. Modular perforator consists of separate modules interconnected by modules connection units with execution of the functions of mechanical strong connection and transmission of detonation between adjacent modules. Each of the modules has a lead charge, boosters and detonation channels based on detonation cords connected to each other. Each modules connection unit is composed of two parts interconnected by a detachable articulated joint. In the first part of the connection unit there is a lead charge connected through the first booster with a detonation cord. In the second part of the connection unit there is the second booster connected to the second detonation cord. In the second part of the modules connection unit there is a conical bushing to envelope part of the second booster at the end of the bushing fixing positions of the detonation cord and the boosters at the ends of the detonation cord by means of clamping screws.

EFFECT: provided is higher reliability of operation.

1 cl, 4 dwg