GB8808453D0 - Drag bits - Google Patents
Drag bitsInfo
- Publication number
- GB8808453D0 GB8808453D0 GB888808453A GB8808453A GB8808453D0 GB 8808453 D0 GB8808453 D0 GB 8808453D0 GB 888808453 A GB888808453 A GB 888808453A GB 8808453 A GB8808453 A GB 8808453A GB 8808453 D0 GB8808453 D0 GB 8808453D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- drag bits
- drag
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1092—Gauge section of drill bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3662587A | 1987-04-10 | 1987-04-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8808453D0 true GB8808453D0 (en) | 1988-05-11 |
GB2203470A GB2203470A (en) | 1988-10-19 |
GB2203470B GB2203470B (en) | 1991-09-18 |
Family
ID=21889672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8808453A Expired - Fee Related GB2203470B (en) | 1987-04-10 | 1988-04-11 | Drill bits |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE1002144A5 (en) |
CA (1) | CA1335988C (en) |
DE (1) | DE3811370A1 (en) |
FR (1) | FR2613764B3 (en) |
GB (1) | GB2203470B (en) |
MX (1) | MX167812B (en) |
NL (1) | NL8800897A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5494123A (en) * | 1994-10-04 | 1996-02-27 | Smith International, Inc. | Drill bit with protruding insert stabilizers |
US5755299A (en) * | 1995-08-03 | 1998-05-26 | Dresser Industries, Inc. | Hardfacing with coated diamond particles |
US9574405B2 (en) | 2005-09-21 | 2017-02-21 | Smith International, Inc. | Hybrid disc bit with optimized PDC cutter placement |
US8955413B2 (en) | 2009-07-31 | 2015-02-17 | Smith International, Inc. | Manufacturing methods for high shear roller cone bits |
US8672060B2 (en) | 2009-07-31 | 2014-03-18 | Smith International, Inc. | High shear roller cone drill bits |
RU2725712C1 (en) * | 2019-07-22 | 2020-07-03 | Дмитрий Юрьевич Сериков | Calibrator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3628616A (en) * | 1969-12-18 | 1971-12-21 | Smith International | Drilling bit with integral stabilizer |
US4068731A (en) * | 1976-11-17 | 1978-01-17 | Smith International, Inc. | Extended nozzle and bit stabilizer and method of producing |
US4140189A (en) * | 1977-06-06 | 1979-02-20 | Smith International, Inc. | Rock bit with diamond reamer to maintain gage |
DE2934471A1 (en) * | 1979-08-25 | 1981-03-26 | Smith International, Inc. (n.d. Ges. d. Staates Delaware), Newport Beach, Calif. | Rock drill for geothermal shafts - where cutters contain peripheral row of very hard tungsten carbide inserts to improve drill life in arduous working conditions |
US4727943A (en) * | 1987-01-15 | 1988-03-01 | Wood Roy W | Rotary drill bit |
-
1988
- 1988-03-22 CA CA 562120 patent/CA1335988C/en not_active Expired - Fee Related
- 1988-04-05 DE DE19883811370 patent/DE3811370A1/en not_active Withdrawn
- 1988-04-07 NL NL8800897A patent/NL8800897A/en not_active Application Discontinuation
- 1988-04-08 BE BE8800399A patent/BE1002144A5/en not_active IP Right Cessation
- 1988-04-08 FR FR8804716A patent/FR2613764B3/en not_active Expired
- 1988-04-08 MX MX1105188A patent/MX167812B/en unknown
- 1988-04-11 GB GB8808453A patent/GB2203470B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2613764B3 (en) | 1989-10-27 |
GB2203470B (en) | 1991-09-18 |
DE3811370A1 (en) | 1988-10-27 |
MX167812B (en) | 1993-04-13 |
GB2203470A (en) | 1988-10-19 |
BE1002144A5 (en) | 1990-07-31 |
FR2613764A1 (en) | 1988-10-14 |
CA1335988C (en) | 1995-06-20 |
NL8800897A (en) | 1988-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20060411 |