GB2273946B - Improvements in or relating to rotary drill bits - Google Patents
Improvements in or relating to rotary drill bitsInfo
- Publication number
- GB2273946B GB2273946B GB9227135A GB9227135A GB2273946B GB 2273946 B GB2273946 B GB 2273946B GB 9227135 A GB9227135 A GB 9227135A GB 9227135 A GB9227135 A GB 9227135A GB 2273946 B GB2273946 B GB 2273946B
- 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
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)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9227135A GB2273946B (en) | 1992-12-31 | 1992-12-31 | Improvements in or relating to rotary drill bits |
EP93310193A EP0605151A1 (de) | 1992-12-31 | 1993-12-16 | Drehbohrmeissel mit Stabilisierungselementen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9227135A GB2273946B (en) | 1992-12-31 | 1992-12-31 | Improvements in or relating to rotary drill bits |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9227135D0 GB9227135D0 (en) | 1993-02-24 |
GB2273946A GB2273946A (en) | 1994-07-06 |
GB2273946B true GB2273946B (en) | 1996-10-09 |
Family
ID=10727347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9227135A Expired - Fee Related GB2273946B (en) | 1992-12-31 | 1992-12-31 | Improvements in or relating to rotary drill bits |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0605151A1 (de) |
GB (1) | GB2273946B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8448726B2 (en) | 2005-12-14 | 2013-05-28 | Baker Hughes Incorporated | Drill bits with bearing elements for reducing exposure of cutters |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5505273A (en) * | 1994-01-24 | 1996-04-09 | Smith International, Inc. | Compound diamond cutter |
EP0707130B1 (de) * | 1994-10-15 | 2003-07-16 | Camco Drilling Group Limited | Drehbohrmeissel |
GB2294069B (en) * | 1994-10-15 | 1998-10-28 | Camco Drilling Group Ltd | Improvements in or relating to rotary drills bits |
US5992548A (en) * | 1995-08-15 | 1999-11-30 | Diamond Products International, Inc. | Bi-center bit with oppositely disposed cutting surfaces |
US6298930B1 (en) * | 1999-08-26 | 2001-10-09 | Baker Hughes Incorporated | Drill bits with controlled cutter loading and depth of cut |
US6460631B2 (en) | 1999-08-26 | 2002-10-08 | Baker Hughes Incorporated | Drill bits with reduced exposure of cutters |
US6568492B2 (en) | 2001-03-02 | 2003-05-27 | Varel International, Inc. | Drag-type casing mill/drill bit |
US6659199B2 (en) * | 2001-08-13 | 2003-12-09 | Baker Hughes Incorporated | Bearing elements for drill bits, drill bits so equipped, and method of drilling |
US7360608B2 (en) | 2004-09-09 | 2008-04-22 | Baker Hughes Incorporated | Rotary drill bits including at least one substantially helically extending feature and methods of operation |
US7814997B2 (en) | 2007-06-14 | 2010-10-19 | Baker Hughes Incorporated | Interchangeable bearing blocks for drill bits, and drill bits including same |
US8943663B2 (en) | 2009-04-15 | 2015-02-03 | Baker Hughes Incorporated | Methods of forming and repairing cutting element pockets in earth-boring tools with depth-of-cut control features, and tools and structures formed by such methods |
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 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5090492A (en) * | 1991-02-12 | 1992-02-25 | Dresser Industries, Inc. | Drill bit with vibration stabilizers |
WO1993013290A1 (en) * | 1991-12-30 | 1993-07-08 | Dresser Industries, Inc. | Drill bit with improved insert cutter pattern |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8418481D0 (en) * | 1984-07-19 | 1984-08-22 | Nl Petroleum Prod | Rotary drill bits |
GB8711255D0 (en) * | 1987-05-13 | 1987-06-17 | Nl Petroleum Prod | Rotary drill bits |
US4981184A (en) * | 1988-11-21 | 1991-01-01 | Smith International, Inc. | Diamond drag bit for soft formations |
-
1992
- 1992-12-31 GB GB9227135A patent/GB2273946B/en not_active Expired - Fee Related
-
1993
- 1993-12-16 EP EP93310193A patent/EP0605151A1/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5090492A (en) * | 1991-02-12 | 1992-02-25 | Dresser Industries, Inc. | Drill bit with vibration stabilizers |
WO1993013290A1 (en) * | 1991-12-30 | 1993-07-08 | Dresser Industries, Inc. | Drill bit with improved insert cutter pattern |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8448726B2 (en) | 2005-12-14 | 2013-05-28 | Baker Hughes Incorporated | Drill bits with bearing elements for reducing exposure of cutters |
Also Published As
Publication number | Publication date |
---|---|
GB9227135D0 (en) | 1993-02-24 |
GB2273946A (en) | 1994-07-06 |
EP0605151A1 (de) | 1994-07-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19971231 |