FIELD: mechanics, mining.
SUBSTANCE: invention is designed to apply process compositions onto weal walls containing solid phase. The proposed device comprises a tubular casing with colmataging nozzles, a swirler with deflectors swirling the jet made from hard-alloy material and arranged in the casing, a branch pipe with slit-like holes fitted behind the swirler. The said swirler represents a replaceable tube with tangential openings. The walls of aforesaid colmataging nozzles fitted in sleeves pressed in the casing wall opposite to each other in between the casing wall and branch pipe, feature two tangential openings intended for repeated swirling of the drill fluid.
EFFECT: higher efficiency of well packing.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GEAR FOR GROUTING OF WALLS OF WELL WITH MUD | 1992 |
|
RU2219324C2 |
| ABOVE-BIT COLMATATOR | 1993 |
|
RU2065920C1 |
| MUD GROUTING DEVICE | 1996 |
|
RU2107802C1 |
| METHOD OF REDUCING PERMEABILITY OF INCOHESIVE ROCK IN WELL CONSTRUCTION | 0 |
|
SU1602976A1 |
| DEVICE FOR WELL WALLS MUD GROUTING | 1991 |
|
RU2025568C1 |
| ABOVE-BIT RING FOR COLMATAGE OF PERMEABLE FORMATIONS | 1991 |
|
RU2023139C1 |
| DEVICE FOR SEALING-OFF THIEF ZONES | 0 |
|
SU1789668A1 |
| COLMATATOR FOR PERMEABLE ROCKS | 0 |
|
SU1803538A1 |
| GEAR FOR MUD INJECTION INTO HIGH-PERMEABLE SEAMS | 1993 |
|
RU2057893C1 |
| DEVICE FOR STABILIZATION OF INCLINED WELL BORE IN DRILLING WITH DOWNHOLE MOTOR | 1992 |
|
RU2049903C1 |
