FIELD: mining.
SUBSTANCE: safety device for breaking ballistic chain in perforation system. The safety device consists in essence of a body of a tubular shape with the first and second ends; the said body is designed to be assembled in any place of the perforation system. The device also contains the first and the second ballistic sections in the body and the third ballistic section able to rotate; the third section is installed in the body so as to travel between a neutral and actuating position by means of utilising pressure in a borehole. When perforation system is taken out of the borehole the safety device returns the third ballistic section in the neutral position. Additionally there is implemented a device for continuous neutralisation of the third ballistic section to prevent haphazard detonation when the system is being extracted from the borehole.
EFFECT: facilitating safety at borehole perforation.
15 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SYSTEM AND PROCEDURE FOR BOREHOLE OF WELL PERFORATION | 2007 |
|
RU2428561C2 |
| COUPLING ADAPTER, PERFORATING SYSTEM AND METHOD OF WELL PERFORATION | 2007 |
|
RU2447268C2 |
| DEVICE FOR AUTOMATIC TOOL RELEASING | 2005 |
|
RU2302509C2 |
| METHOD AND DEVICES TO CREATE TRANSITION PRESSURE CONDITION INSIDE WELL BORE | 2005 |
|
RU2310067C2 |
| METHOD AND FACILITY FOR CONTROL OVER UNSTABLE STATE IN WELL BOREHOLE | 2003 |
|
RU2352769C2 |
| PROCEDURE AND DEVICE FOR INTRAWELL SELECTIVE COMMUNICATION BY MEANS OF FLUID MEDIUM | 2007 |
|
RU2401936C1 |
| METHODS, DEVICES AND SYSTEMS OF ELECTRONIC TIME DELAY | 2007 |
|
RU2439482C2 |
| WIRELESS INITIATION OF GUN PERFORATOR | 2008 |
|
RU2493358C2 |
| MULTIZONE WELL COMPLETION METHOD AND SYSTEM (VARIANTS) | 2005 |
|
RU2310066C2 |
| FACILITY AND METHODS FOR REMOVING FILTER CAKE FROM UNCASED BOREHOLE OF WELL | 2005 |
|
RU2360100C2 |
