FIELD: mining.
SUBSTANCE: cutting tool comprises a tool body, a plurality of blades extending from the tool body, and a plurality of non-planar cutting elements on each of the plurality of blades. A plurality of non-planar cutting elements forms a cutting profile in the rotated form of said plurality of non-planar cutting elements in one plane. The cutting profile comprises a conical portion, a protruding portion, a shoulder portion and a calibration portion. Mentioned plurality of non-planar cutting elements comprise a first mould at least on a conical portion but not on a shoulder portion or a calibration portion and a second having an excellent shape on at least one of the protruding portion, the shoulder portion and the calibration portion but not on the conical portion site.
EFFECT: ensuring an effective penetration rate and an acceptable bit life.
19 cl, 22 dwg
| Title |
Year |
Author |
Number |
| DRILL BIT HAVING A SHAPED FRONT CUTTER AND AN IMPREGNATED AUXILIARY CUTTER |
2018 |
- Drews, Steven Wayne
- Wilson, Peter Clark
|
RU2768347C2 |
| CUTTING ELEMENTS OF DRILL BIT WITH FIXED CUTTERS CONTAINING HARD CUTTING PLATES MADE OF SYNTHETIC DIAMONDS FORMED BY CHEMICAL VAPOUR DEPOSITION |
2013 |
- Chzhan Godun
- Nikson Majkl S.
|
RU2638220C2 |
| CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE DRILLING TOOLS |
2014 |
- Azar Majkl Dzh.
- Durajradzhan Bala
- Keshavan Madapusi K.
|
RU2629267C2 |
| STABILIZING DRILL BIT WITH FIXED CUTTING STRUCTURE |
2018 |
|
RU2768877C2 |
| DRILLING BIT WITH FIXED EQUIPMENT, HAVING CORE RECEPTACLE WITH CONCAVE COREBREAKER |
2017 |
- Gallego, Gilles
- Cuillier De Maindreville, Bruno
- Dourfaye, Alfazazi
- Reboul, Sebastien
|
RU2736678C2 |
| CUTTING TOOL WITH PRE-FORMED SEGMENTS WITH HARD-FACING |
2018 |
- Chzhan, Joukhe
- Sun, Khojmin
- Morli, Yan Shtefan
|
RU2769361C2 |
| DRILL BIT WITH CASING PIPE OR CASING-SHANK AND ITS MANUFACTURING |
2017 |
- Gallego, Gilles
- Cuillier De Maindreville, Bruno
- Thigpen, Gary M.
|
RU2719868C2 |
| CUTTING ELEMENT WITH MULTIPLE BEVELED SURFACES AND CUTTING END OF DEFINITE SHAPE, AND DRILLING CUTTING TOOLS CONTAINING SUCH CUTTING ELEMENTS |
2015 |
- Patel Suresh
- Stoki Dejvid A.
- Flores Alekhandro
- Didzhovanni Antoni A.
- Skott Denni E.
- Ledzhervud Leroj U.
|
RU2721914C2 |
| DYNAMICALLY STABLE HYBRID DRILL BIT |
2009 |
- Rudolf S.O. Pessir
- Don K. Ngujen
- Majkl L. Doster
- Majkl Stiven Damshen
|
RU2536914C2 |
| DRILL BIT, SYSTEM AND METHOD OF WELL-BORING IN SUBSURFACE BED |
2004 |
- Krush Anton'Ju Marija Gimaraesh Lejte
|
RU2332554C2 |
