GEAR FOR DEPRESSION PERFORATION OF WELLS Russian patent published in 2002 - IPC

FIELD: exploitation of oil wells. SUBSTANCE: invention is specifically related to equipment designed to open pools and treat wells. Gear includes cumulative perforator and implosion chamber connected to it. Connection of cumulative perforator with implosion chamber comes in the form of cylinder with side windows shut off by piston with seals, piston can be pushed out of cylinder by pressure of fluid and in this case implosion chamber communicates with perforator through side windows of cylinder when blast gases have time to run out into shaft of well. Face side of cylinder carries chamber-moderator which hinders pushing of piston by blast gases when shaped charges burst. EFFECT: increased operational efficiency of gear securing high-speed filling of implosion chamber by fluid which enhances depression and improves clearing of pores of pool and increases discharge of well. 2 dwg