FIELD: oil and gas production.
SUBSTANCE: proposed device comprises tubular case with top and bottom retainers arranged on its ends, each being provided with extending slips, perforating cutter, return spring and fixed locking element. Locking assembly is made up of a set of anchors with fixed slips arranged opposite extending slips. Said anchors are communicated via guide accommodating cutting assembly with cutter and spring fitted therein. Check valves are arranged in top anchor and cutting assembly.
EFFECT: larger depth of perforated channels, higher reliability, longer life, better reparability.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR FORMATION OF PERFORATED SLOT CHANNELS IN WELL WALL | 2001 |
|
RU2189436C1 |
| DEVICE FOR SLIT PERFORATION OF CASED WELLS | 2003 |
|
RU2241822C1 |
| HYDROMECHANICAL KNIFE PERFORATOR | 2013 |
|
RU2538554C1 |
| HYDROMECHANICAL SLOT-TYPE PERFORATOR | 2014 |
|
RU2550629C1 |
| MECHANISM FOR MECHANICAL-HYDRAULIC PERFORATOR INSTALLATION AND RETAINING INSIDE WELL | 2006 |
|
RU2312978C1 |
| SECTOR METHOD OF FISSURE HYDRO-MECHANICAL PERFORATION OF WELL | 2007 |
|
RU2369728C2 |
| DEVICE FOR WELL BORE PERFORATION IN THE CASE OF LOW RESERVOIR PRESSURE | 2006 |
|
RU2315176C1 |
| DEVICE FOR WELL BORE PERFORATION IN THE CASE OF LOW RESERVOIR PRESSURE | 2006 |
|
RU2312977C1 |
| GUN PERFORATOR | 2007 |
|
RU2348796C1 |
| BOREHOLE PERFORATOR | 2004 |
|
RU2263767C1 |
