FIELD: mining.
SUBSTANCE: bit for drilling of wells in highly gas bearing beds comprises a body with flushing channels and a stop element with blades installed in its cavity by means of a vertically fixed pin. The internal side and end surfaces of the stop element are equipped with accordingly circular and disc permanent magnets, and the upper part of the pin - with response circular and disc permanent magnets, at the same time circular and disc magnets of the stop element and the pin face each other with identical poles.
EFFECT: improved reliability of stop element actuation and increased efficiency of bit operation.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILLING BIT OF WELLS IN HIGH-GAS-BEARING FORMATIONS | 2011 |
|
RU2479709C1 |
| BORE BIT FOR DRILLING WELLS IN HIGH GAS BEARING BEDS | 2008 |
|
RU2370622C1 |
| BORING BIT FOR WELLS IN HIGH GAS CONTENT RESERVOIR (VERSIONS) | 2008 |
|
RU2376440C1 |
| BORE BIT FOR DRILLING WELLS IN HIGH GAS BEARING BEDS | 2008 |
|
RU2370621C1 |
| DRILLING BIT OF WELLS IN GAS-BEARING FORMATIONS | 2011 |
|
RU2479707C1 |
| CROWN FOR WELL DRILLING IN EMISSION HAZARDOUS BEDS | 2011 |
|
RU2481460C1 |
| PROJECTILE FOR WELL DRILLING IN HIGHLY GASEOUS SEAMS | 2015 |
|
RU2578216C1 |
| BORE BIT FOR DRILLING OF WELLS IN HIGH-GAS-BEARING BEDS | 2014 |
|
RU2568196C1 |
| DRILL BIT FOR WELL DRILLING ON OUTBURST-PRONE SEAMS | 2008 |
|
RU2367763C1 |
| DRILL COLUMN FOR DRILLING OF WELLS IN HIGHLY GAS-BEARING BEDS | 2012 |
|
RU2491408C1 |
