FIELD: mining.
SUBSTANCE: claimed method comprises the locking of rod with crown bit by mid element and the transfer of lengthwise forces thereto to opposite sides. Prior to applying of opposed forces, the rod is cooled down while dill bit is heated. Note here that said drill bit is heated via said mid element while the rod is cooled via its flushing channel.
EFFECT: higher efficiency of removal.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| REMOVAL OF DRILL BIT FROM ROD | 2015 |
|
RU2568651C1 |
| REMOVAL OF DRILL BIT FROM ROD | 2015 |
|
RU2568650C1 |
| REMOVAL OF DRILL BIT FROM ROD | 2015 |
|
RU2568649C1 |
| CROWN BIT REMOVAL FROM ROD | 2015 |
|
RU2568648C1 |
| METHOD FOR REMOVING DRILLING BIT FROM ROD | 2011 |
|
RU2479710C1 |
| DRILLING BIT REMOVING DEVICE | 2008 |
|
RU2384691C1 |
| BORE BIT FOR DRILLING OF WELLS IN HIGH-GAS-BEARING BEDS | 2014 |
|
RU2568196C1 |
| PROJECTILE FOR WELL DRILLING IN HIGHLY GASEOUS SEAMS | 2015 |
|
RU2578216C1 |
| DEVICE FOR REMOVAL OF JACKBIT FROM ROD | 2008 |
|
RU2382868C1 |
| DRILL BIT FLUSHING ASSEMBLY | 2014 |
|
RU2568194C1 |
