METHOD FOR JOINING MODULE-SECTIONS OF READY SHAPED-CHARGE PERFORATOR INTO LENGTHY ASSEMBLY AND TRANSMITTING DETONATION FROM MODULE TO MODULE Russian patent published in 1998 - IPC

FIELD: oil and gas production industry. SUBSTANCE: this relates to technology of secondary opening of productive oil-gas bearing beds by method of shaped-charge perforation. It adds to reliability of joining module-sections of perforators. Used as joining unit for perforator module-sections is movable bayonet-type ball unit. Connecting members of this joint are provided with units for transmitting and receiving of detonation. They are enclosed by metal strips. Transmission of detonation wave through clearance between detonation transmitting and receiving units is effected due to throwing of metal strip from detonation transmitting unit to metal strip of detonation receiving unit under action of compression shock-blast wave. Blast reaction in detonation receiving unit is initiated by pulse-shock load. EFFECT: higher efficiency. 5 cl, 2 dwg