FIELD: mining industry. SUBSTANCE: this is intended for use in drilling new deflected bore-hole in well. Whipstock has support on which guide wedge is secured. Support is embedded in cement slurry for operation. Mounted on guide wedge by means of shear bolts is lowering wedge. Passage for delivery of cement slurry for fixing of support in bore-hole is of broken configuration and is optimally remote from guide plane of wedge. Aforesaid embodiment of whipstock enhances stability of cutting tool and allows for more accurate maintaining required direction of newly driven bore-hole. EFFECT: higher efficiency. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR CUTTING SIDE BORE-HOLE IN ENCASED WELL | 1996 |
|
RU2109921C1 |
| METHOD FOR CEMENTATION OF CASING STRING IN ABSORPTION WELL | 1995 |
|
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| DEVICE FOR CUTTING OUT SECTION OF PIPE STRING IN WELL | 1996 |
|
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| DEVICE FOR ISOLATION OF DRILLING FLUID ABSORPTION ZONES IN WELL | 1995 |
|
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| WHIPSTOCK SPINDLE | 1997 |
|
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| HYDROMECHANICAL PERFORATOR | 1997 |
|
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| WHIPSTOCK OF DRILLING TOOL FOR CUTTING-OUT WINDOWS IN WELL CASING STRING | 2002 |
|
RU2213198C1 |
| APPARATUS FOR CEMENTING CASING SECTIONS | 0 |
|
SU1055854A1 |
| INSTALLATION AND ATTACHMENT METHOD OF WEDGE-SHAPED DIVERTER IN HORIZONTAL WELLS, AND BOREHOLE HYDROMECHANICAL PUSHER FOR ITS IMPLEMENTATION | 2012 |
|
RU2510448C1 |
| WHIPSTOCK | 1998 |
|
RU2148695C1 |
