FIELD: oil and gas industry, particularly devices for perforating well casing pipes and equipment for productive stratum opening.
SUBSTANCE: device has body and nozzle unit. Actuating medium source including a number of solid fuel charges with different abrasive particles is arranged in body. Nozzle unit has at least three nozzles arranged in horizontal cross-section, conical distributor of heat resistant material such as steel for splitting combustion product flow. Distributor base diameter is equal to nozzle unit diameter. Distributor is arranged on nozzle unit wall parallel to combustion surface of solid fuel charges. Distributor height is selected from the following correlation: 0.3<H/Dr<0.35, where H is distributor height, Dr is nozzle unit diameter.
EFFECT: increased efficiency due to prevention of depositing condensed fraction of combustion products on nozzle unit wall.
2 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| THERMOMECHANICAL CUTTING PROCESS | 2002 |
|
RU2266178C2 |
| DEVICE FOR WELLS PERFORATION | 2001 |
|
RU2249679C2 |
| GAS GENERATOR FOR FORMATION FRACTURING | 0 |
|
SU588782A1 |
| DEVICE FOR IGNITION OF FUEL | 1999 |
|
RU2166181C2 |
| APPARATUS FOR ANALYZING PARTICLE COMPOSITION OF POWDERS | 0 |
|
SU1060571A2 |
| APPARATUS FOR CLOSING-OFF WELLS WHEN FORMATION-FRACTURING BY GUNPOWER GAS GENERATOR | 0 |
|
SU962584A1 |
| DEVICE FOR SEPARATION OF LOOSE MATERIAL FROM CARRIER GAS | 2001 |
|
RU2200064C1 |
| APPARATUS FOR DISINTEGRATING SOLID MATERIALS | 0 |
|
SU884735A2 |
| PNEUMATIC MIXER | 0 |
|
SU897271A2 |
| METHOD OF ANALYSIS OF DISPERSED COMPOSITION OF POLYDISPERSED MATERIALS | 0 |
|
SU1536270A1 |
