GB2190120B - Improvements in or relating to rotary drill bits - Google Patents
Improvements in or relating to rotary drill bitsInfo
- Publication number
- GB2190120B GB2190120B GB8611449A GB8611449A GB2190120B GB 2190120 B GB2190120 B GB 2190120B GB 8611449 A GB8611449 A GB 8611449A GB 8611449 A GB8611449 A GB 8611449A GB 2190120 B GB2190120 B GB 2190120B
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- drill bits
- rotary drill
- rotary
- bits
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline 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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8611449A GB2190120B (en) | 1986-05-10 | 1986-05-10 | Improvements in or relating to rotary drill bits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8611449A GB2190120B (en) | 1986-05-10 | 1986-05-10 | Improvements in or relating to rotary drill bits |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8611449D0 GB8611449D0 (en) | 1986-06-18 |
GB2190120A GB2190120A (en) | 1987-11-11 |
GB2190120B true GB2190120B (en) | 1990-02-14 |
Family
ID=10597666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8611449A Expired - Fee Related GB2190120B (en) | 1986-05-10 | 1986-05-10 | Improvements in or relating to rotary drill bits |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2190120B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8066084B2 (en) | 1999-08-26 | 2011-11-29 | Baker Hughes Incorporated | Drilling apparatus with reduced exposure of cutters and methods of drilling |
US8141665B2 (en) | 2005-12-14 | 2012-03-27 | Baker Hughes Incorporated | Drill bits with bearing elements for reducing exposure of cutters |
US8459382B2 (en) | 2007-06-14 | 2013-06-11 | Baker Hughes Incorporated | Rotary drill bits including bearing blocks |
US9309723B2 (en) | 2009-10-05 | 2016-04-12 | Baker Hughes Incorporated | Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of directional and off center drilling |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5033560A (en) * | 1990-07-24 | 1991-07-23 | Dresser Industries, Inc. | Drill bit with decreasing diameter cutters |
GB2252574B (en) * | 1991-02-01 | 1995-01-18 | Reed Tool Co | Rotary drill bits and methods of designing such drill bits |
US6394202B2 (en) * | 1999-06-30 | 2002-05-28 | Smith International, Inc. | Drill bit having diamond impregnated inserts primary cutting structure |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4098362A (en) * | 1976-11-30 | 1978-07-04 | General Electric Company | Rotary drill bit and method for making same |
-
1986
- 1986-05-10 GB GB8611449A patent/GB2190120B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4098362A (en) * | 1976-11-30 | 1978-07-04 | General Electric Company | Rotary drill bit and method for making same |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8066084B2 (en) | 1999-08-26 | 2011-11-29 | Baker Hughes Incorporated | Drilling apparatus with reduced exposure of cutters and methods of drilling |
US8172008B2 (en) | 1999-08-26 | 2012-05-08 | Baker Hughes Incorporated | Drilling apparatus with reduced exposure of cutters and methods of drilling |
US8141665B2 (en) | 2005-12-14 | 2012-03-27 | Baker Hughes Incorporated | Drill bits with bearing elements for reducing exposure of cutters |
US8448726B2 (en) | 2005-12-14 | 2013-05-28 | Baker Hughes Incorporated | Drill bits with bearing elements for reducing exposure of cutters |
US8459382B2 (en) | 2007-06-14 | 2013-06-11 | Baker Hughes Incorporated | Rotary drill bits including bearing blocks |
US9309723B2 (en) | 2009-10-05 | 2016-04-12 | Baker Hughes Incorporated | Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of directional and off center drilling |
Also Published As
Publication number | Publication date |
---|---|
GB2190120A (en) | 1987-11-11 |
GB8611449D0 (en) | 1986-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960510 |