FIELD: drilling equipment, particularly special apparatus for deflecting the boring used to start side bore from cased or uncased well in difficult-to-cut rock.
SUBSTANCE: reamer comprises deflecting working surface and milling tool connected to upper end and bearing connected to lower end thereof. The deflecting working surface is uniformly covered with wear-resistance covering formed of composition including filled and binding agent. The filler is mixture containing particulate waste of refractory alloy having antifriction properties and hard alloy. The binding agent is elastic glue.
EFFECT: increased operational reliability, reduced costs of protective coating, possibility to utilize waste obtained during hard-alloy or refractory alloy article processing or production.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CUTTING TOOL | 2006 |
|
RU2310735C1 |
| SYSTEM FOR WINDOW CUTTING IN CASING PIPE | 2005 |
|
RU2278239C1 |
| DEFLECTOR DEVICE FOR WINDOW CUTTING IN CASING PIPE OF WELL | 2009 |
|
RU2401930C1 |
| DEFLECTING DEVICE TO CUT PORT IN WELL CASING | 2016 |
|
RU2641150C1 |
| WHIPSTOCK | 1998 |
|
RU2148695C1 |
| MILLING TOOL FOR CUTTING OPENING IN WELL CASING STRING | 2009 |
|
RU2399747C1 |
| WEDGE-LIKE WHIPSTOCK | 2004 |
|
RU2270909C2 |
| DEFLECTION DEVICE | 2013 |
|
RU2539494C2 |
| MILLING TOOL FOR CUTOUT OF WINDOW IN WELL CASING STRING | 2012 |
|
RU2499881C2 |
| WAY FOR ORIENTED CUTTING OF WINDOWS IN CASING STRING | 2002 |
|
RU2209917C1 |
