SU58969A1 - Perforator for shooting holes in the borehole walls - Google Patents

Description

The proposed perforator for shooting holes in the borehole walls is characterized by the use of remote-acting explosive projectiles. This makes it possible to increase the sweep cavity.

In FIG. 1 shows a general view of the perforator; FIG. 2 explosive d.

The proposed perforator consists of two main parts: the case A of the perforator and the explosive shells In a distant ZIONPO action.

In the upper and lower parts of case A, threads 1 and 2 are cut, which serves to screw a special plug with a shackle on it for hanging the perforator and for connecting it to the second perforator by means of a coupling. A plenum chamber 3 and an opening for an insertable barrel 4 are drilled in the body of the perforator. The barrel 4 "is screwed by means of a thread.

The blast. The charge in the charge chamber is corroded by electric power. When charging a perforator, the odip wire is attached to the body of the perforator, the second wire B is passed through the tomb 5, the rubber sealing

ring 6 and through channel 7 is supplied to the charging chamber 3. A spark, necessary for an explosion, is obtained by applying current to the wiring.

The barrel 4 is inserted into the barrel 4, after which the barrel is plugged with the wad.

The projectile body 9 (Fig. Q) is an all-metal rim made of increased hardness steel. On the shell of the projectile there are two copper poles 10, which serve to center the projectile in the muzzle and to seal the barrel.

In the body of the projectile, a firing pin 11 is placed, mated to the igniter 12 by a spring 17. The igniter 12 is a piston charged by an easily ignitable material. Under the igniter there is a pad of uncompressed powder — retarder 13. Below the retarder is placed the detonator 14. Under the detonator there is a snap pad 15, below which is an explosive 18 of trotyl type. Snar d is closed by a cap 16 on the thread and varnish.

The principle of the punch is as follows. When current is switched on from a spark, an explosion occurs in the charge

the camera. An explosive blast, ejected from the barrel, punches a stack of obsadny pipe, cement ring and | INCLUDES SB. oil horizon. At this time I, in s-nar, due to the forces of inertia, the hammer 11 squeezes Pruzhiva 17 and | blow to the igniter 12. The ignition igniter 12 ignites the retarder 13. Last In turn, I turn up the detonator 14. As a result of detonation and an explosion occurs, I

 18. Under pressure, the formed wire bursts.

9p e d m ei t invented and.

A perforator for shooting holes in the walls of a borehole, characterized by the use of demolition shells, in order to increase the clearance holes.

fig1