FIELD: drilling technique. SUBSTANCE: swivel has a body, a spindle with a central channel for pulp drainage, upper and lower bearings assemblies, packing units, compressed air supply line, and a device for preventing abrasion particles from entering the bearings assemblies. The preventing device is provided with a gage channel made in the swivel body and connected to the compressed air supply line and directly to the upper bearings assembly cavity. EFFECT: enlarged operating capabilities. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SWIVEL FOR DOUBLE DRILLING STRING | 0 |
|
SU1441057A1 |
| SWIVEL | 0 |
|
SU1694850A1 |
| 0 |
|
SU560967A1 | |
| SWIVEL | 0 |
|
SU1698417A1 |
| DRILLING IMPLEMENT | 0 |
|
SU926225A1 |
| SPRING-LOADED SEALING ASSEMBLY AND WELL DRILLING EQUIPMENT CONTAINING THAT ASSEMBLY | 2008 |
|
RU2468183C2 |
| BEARING ASSEMBLY SYSTEM WITH INTEGRAL DISTRIBUTION OF LUBRICATION, AND DRILLING EQUIPMENT OF WELLS, WHICH CONTAINS THAT SYSTEM | 2008 |
|
RU2468184C2 |
| PRELIMINARY SPRING-LOADED BEARING ASSEMBLY AND DRILLING EQUIPMENT WITH SUCH ASSEMBLY | 2008 |
|
RU2470140C2 |
| DOWNHOLE MOTOR BIT SHAFT | 2001 |
|
RU2192533C2 |
| SELF-INTERLOCKING APPARATUS FOR PORTABLE AND SELF-PROPELLED DRILLS | 0 |
|
SU985275A1 |
