ZA867512B - Drill bit and roller cutter for said drill bit - Google Patents
Drill bit and roller cutter for said drill bitInfo
- Publication number
- ZA867512B ZA867512B ZA867512A ZA867512A ZA867512B ZA 867512 B ZA867512 B ZA 867512B ZA 867512 A ZA867512 A ZA 867512A ZA 867512 A ZA867512 A ZA 867512A ZA 867512 B ZA867512 B ZA 867512B
- Authority
- ZA
- South Africa
- Prior art keywords
- roller cutter
- drill bit
- saddle
- rows
- roller
- Prior art date
Links
- 230000001464 adherent effect Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
- E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/10—Roller bits with roller axle supported at both ends
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/16—Roller bits characterised by tooth form or arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Drilling Tools (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Drilling And Boring (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Numerical Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8504711A SE459436B (sv) | 1985-10-11 | 1985-10-11 | Borrhuvud och skaerrulle avsedd att anvaendas vid detta |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA867512B true ZA867512B (en) | 1987-05-27 |
Family
ID=20361700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA867512A ZA867512B (en) | 1985-10-11 | 1986-10-01 | Drill bit and roller cutter for said drill bit |
Country Status (9)
Country | Link |
---|---|
US (1) | US4832136A (no) |
EP (2) | EP0218567B1 (no) |
AT (2) | ATE131571T1 (no) |
AU (1) | AU593019B2 (no) |
CA (1) | CA1254195A (no) |
DE (2) | DE3685076D1 (no) |
NO (1) | NO175913C (no) |
SE (1) | SE459436B (no) |
ZA (1) | ZA867512B (no) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6131676A (en) * | 1997-10-06 | 2000-10-17 | Excavation Engineering Associates, Inc. | Small disc cutter, and drill bits, cutterheads, and tunnel boring machines employing such rolling disc cutters |
DE10150685B4 (de) * | 2001-10-17 | 2007-06-14 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH | Arbeitskopf mit veränderbarem Schneidabstand der Schneidrollen für eine Vorrichtung zum Vortreiben von Strecken, Tunneln oder dergleichen |
US7370711B2 (en) * | 2005-08-15 | 2008-05-13 | Smith International, Inc. | Rolling cone drill bit having non-circumferentially arranged cutter elements |
US7686104B2 (en) * | 2005-08-15 | 2010-03-30 | Smith International, Inc. | Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions |
US9016407B2 (en) * | 2007-12-07 | 2015-04-28 | Smith International, Inc. | Drill bit cutting structure and methods to maximize depth-of-cut for weight on bit applied |
US8100202B2 (en) * | 2008-04-01 | 2012-01-24 | Smith International, Inc. | Fixed cutter bit with backup cutter elements on secondary blades |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1646620A (en) * | 1923-09-04 | 1927-10-25 | F M Fishback | Rotary disk drill |
DE1805336A1 (de) * | 1968-10-25 | 1970-05-14 | Edelstahlwerk J C Soeding & Ha | Bohrgeraet |
US3756332A (en) * | 1971-11-01 | 1973-09-04 | Robbins Co | Disc type center cutter for a boring machine |
ZA723776B (en) * | 1972-06-02 | 1974-01-30 | Hard Metals Ltd | Disc cutting unit for use on rock boring machines |
US3797592A (en) * | 1972-11-21 | 1974-03-19 | Kennametal Inc | Stabilizing roller |
US3863994A (en) * | 1973-09-24 | 1975-02-04 | Jarva Corp | Bidirectional roller cutter |
SU754058A1 (ru) * | 1976-06-22 | 1980-08-07 | Московский Ордена Трудового Красного Знамени Горный Институт | Проходческий комбайн дл электротермической проходки горных выработок |
DE2742019C3 (de) * | 1977-09-17 | 1980-07-03 | Demag Ag, 4100 Duisburg | Rollenbohrwerkzeug für Tunnelvortriebsmaschinen |
DE2838154C3 (de) * | 1978-09-01 | 1981-09-17 | Mannesmann Demag Ag, 4100 Duisburg | Rotierender mit sternförmig nach außen gerichteten Armen versehener Bohrkopf für Vollschnitt-Tunnelvortriebsmaschinen |
SE463110B (sv) * | 1979-02-02 | 1990-10-08 | Sandvik Ab | Saett och anordning foer stigortsdrivning |
US4381038A (en) * | 1980-11-21 | 1983-04-26 | The Robbins Company | Raise bit with cutters stepped in a spiral and flywheel |
DE3132345C1 (de) * | 1981-08-17 | 1983-01-13 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz | Halterung fuer Schneidwerkzeuge auf Bohrkoepfen |
SE457656B (sv) * | 1984-06-18 | 1989-01-16 | Santrade Ltd | Borrkrona innefattande en roterande skaerrulle och borrhuvud innefattande saadan borrkrona |
-
1985
- 1985-10-11 SE SE8504711A patent/SE459436B/sv not_active IP Right Cessation
-
1986
- 1986-09-26 EP EP86850326A patent/EP0218567B1/en not_active Expired - Lifetime
- 1986-09-26 DE DE8686850326T patent/DE3685076D1/de not_active Expired - Lifetime
- 1986-09-26 DE DE3650450T patent/DE3650450T2/de not_active Expired - Fee Related
- 1986-09-26 EP EP91200364A patent/EP0435861B1/en not_active Expired - Lifetime
- 1986-09-26 AT AT91200364T patent/ATE131571T1/de not_active IP Right Cessation
- 1986-09-26 AT AT86850326T patent/ATE75524T1/de not_active IP Right Cessation
- 1986-09-30 AU AU63254/86A patent/AU593019B2/en not_active Ceased
- 1986-10-01 ZA ZA867512A patent/ZA867512B/xx unknown
- 1986-10-10 CA CA000520253A patent/CA1254195A/en not_active Expired
- 1986-10-10 NO NO864047A patent/NO175913C/no not_active IP Right Cessation
-
1988
- 1988-02-16 US US07/158,097 patent/US4832136A/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU593019B2 (en) | 1990-02-01 |
EP0218567B1 (en) | 1992-04-29 |
US4832136A (en) | 1989-05-23 |
EP0218567A3 (en) | 1988-11-02 |
SE459436B (sv) | 1989-07-03 |
EP0435861A2 (en) | 1991-07-03 |
ATE75524T1 (de) | 1992-05-15 |
EP0435861A3 (en) | 1992-04-29 |
CA1254195A (en) | 1989-05-16 |
AU6325486A (en) | 1987-04-16 |
NO175913B (no) | 1994-09-19 |
EP0435861B1 (en) | 1995-12-13 |
DE3650450T2 (de) | 1996-05-02 |
EP0218567A2 (en) | 1987-04-15 |
SE8504711L (sv) | 1987-04-12 |
DE3685076D1 (de) | 1992-06-04 |
NO864047L (no) | 1987-04-13 |
DE3650450D1 (de) | 1996-01-25 |
ATE131571T1 (de) | 1995-12-15 |
NO175913C (no) | 1994-12-28 |
NO864047D0 (no) | 1986-10-10 |
SE8504711D0 (sv) | 1985-10-11 |
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