FIELD: process engineering.
SUBSTANCE: set of invention relates to hybrid drill bits. Drill bit comprises body for connection to drill string, at least one fixed blade extending downward from drill bit body and provided with radially remote gaging surface. Several fixed cutters are secured to fixed blade. At least one bit leg is attached to bit body. Roller cone is arranged at drill bit leg to run thereat. At least one stabilising strap is fitted between at least one bit leg and at least one stabilising blade to extend radially outward to, in fact, aforesaid gaging surface.
EFFECT: stabilised drill bit, hence improved drilling performances.
31 cl, 8 dwg
| Title |
Year |
Author |
Number |
| DYNAMICALLY STABLE HYBRID DRILL BIT |
2009 |
- Rudolf S.O. Pessir
- Don K. Ngujen
- Majkl L. Doster
- Majkl Stiven Damshen
|
RU2536914C2 |
| DRILLING BITS WITH ANTI-TRECKING PROPERTIES |
2011 |
- Baske Robert Dzh.
- Bredford Dzhon F.
|
RU2598388C2 |
| HYBRID DRILL BIT WITH VARIABLE CUTTER LEDGE |
2010 |
|
RU2521132C2 |
| HYBRID DRILLING BIT WITH HIGH SIDE FRONT INCLINATION ANGLE OF AUXILIARY BACKUP CUTTERS |
2009 |
- Rudolf S. Pessir
- Majkl S. Damshen
|
RU2531720C2 |
| SYSTEM AND METHOD FOR FIXING TABS ON HYBRID BITS |
2012 |
- Riks Gregori L.
- Felderkhoff Flojd S.
- Pessir Rudolf Karl
|
RU2601645C2 |
| INSTRUMENTS FOR DRILLING OF EARTH SURFACE, CONTAINING PASSIVELY CONTROLLED ELEMENTS FOR CHANGE OF AGGRESSIVENESS, AND RELATED METHODS |
2016 |
- Dzhain, Dzhaesh, Rameshlal
- Vempati, Chkhajtanya, K.
- Riks, Gregori, L.
- Bilen, Khuan, Migel
|
RU2738434C2 |
| HYBRID DRILL BIT WITH HIGH RATIO BETWEEN DIAMETERS OF GUIDE STUD AND JOURNAL |
2009 |
- Don K. Nguehn
- Anton F. Zakhradnik
- Rudolf S. Pessir
|
RU2541414C2 |
| DRILLING SYSTEMS AND HYBRID DRILL BITS FOR DRILLING IN SUBTERRANEAN FORMATION AND METHODS RELATING THERETO |
2014 |
|
RU2669623C1 |
| STABILIZING DRILL BIT WITH FIXED CUTTING STRUCTURE |
2018 |
|
RU2768877C2 |
| BIT FOR ROTARY DRILLING |
1993 |
- Dubenko V.E.
- Devjatov E.V.
- Fedorova N.G.
|
RU2061831C1 |
