FIELD: oil and gas industry, particularly perforators using direct fluid action, for instance abrasive jets.
SUBSTANCE: perforator comprises hollow body with cylindrical groove in central part thereof, perforation piston with throttling channel and upper sub. Additional channel provided with piston is created in perforation piston. Piston is fixedly connected to the body and may block communication between throttling channel and body interior in initial position.
EFFECT: increased efficiency.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HYDRAULIC PUNCH | 2017 |
|
RU2656062C1 |
| SLOT PERFORATOR | 2013 |
|
RU2533514C1 |
| DEVICE FOR DEVELOPMENT OF PERFORATION CHANNELS OF DEEP PENETRATION IN OIL AND GAS WELLS | 2009 |
|
RU2403380C1 |
| HYDROMECHANICAL PIERCING PERFORATOR AND ITS OPERATING PRINCIPLE | 2012 |
|
RU2506414C1 |
| HYDRAULIC PROBING PERFORATOR | 2013 |
|
RU2550709C2 |
| COMPLEX HYDRAULIC WEDGE PERFORATOR (VERSIONS) | 2016 |
|
RU2633596C1 |
| PERFORATOR FOR OIL-WELL TUBING | 2007 |
|
RU2350740C1 |
| DEVICE FOR PUNCTURING CASING PIPE IN WELL | 2016 |
|
RU2631446C1 |
| COMBINED WATER JET PERFORATOR (CWJP) | 2015 |
|
RU2598616C1 |
| METHOD OF HYDROMECHANICAL PUNCHING OF WELLS ON DEPRESSION | 2015 |
|
RU2612702C1 |
