GB898004A - Drill bits - Google Patents
Drill bitsInfo
- Publication number
- GB898004A GB898004A GB1821458A GB1821458A GB898004A GB 898004 A GB898004 A GB 898004A GB 1821458 A GB1821458 A GB 1821458A GB 1821458 A GB1821458 A GB 1821458A GB 898004 A GB898004 A GB 898004A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bore
- head
- impregnated
- diamond
- june
- 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
Links
- 239000010432 diamond Substances 0.000 abstract 4
- 229910003460 diamond Inorganic materials 0.000 abstract 3
- 239000000314 lubricant Substances 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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling Tools (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
898,004. Diamond drill bits. IMPREGNATED DIAMOND PRODUCTS Ltd. June 3, 1959 [June 6, 1958], No. 18214/58. Class 124. A drill bit having a head with a diamond impregnated cutting surface is provided with an axially inclined eccentric bore, part of the surface of which is surfaced with an abrasive. As shown, the head 1 has a cutting surface 3 and an axially inclined, eccentric bore 6 preferably of oval section which opens into a diametral slot extending over the sides of the head as a groove 5. A rectangular section lubricant passage 10 communicates with the slot and a second passage 11, in open communication with the bore may be provided. A part 9 of the surface of the bore may be impregnated with diamonds, and the angle of inclination of the bore may be such that the ends 7, 8 of the bore do not completely overlap.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1821458A GB898004A (en) | 1958-06-06 | 1958-06-06 | Drill bits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1821458A GB898004A (en) | 1958-06-06 | 1958-06-06 | Drill bits |
Publications (1)
Publication Number | Publication Date |
---|---|
GB898004A true GB898004A (en) | 1962-06-06 |
Family
ID=10108609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1821458A Expired GB898004A (en) | 1958-06-06 | 1958-06-06 | Drill bits |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB898004A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3318400A (en) * | 1965-03-31 | 1967-05-09 | Exxon Production Research Co | Hollow crown diamond bit |
US4854788A (en) * | 1987-04-21 | 1989-08-08 | Nikken Tool Co., Ltd. | Drill |
WO1997027380A2 (en) * | 1996-01-24 | 1997-07-31 | Weatherford/Lamb, Inc. | Method for forming a window in a tubular and apparatus for use in said method |
US6024168A (en) | 1996-01-24 | 2000-02-15 | Weatherford/Lamb, Inc. | Wellborne mills & methods |
US6112812A (en) * | 1994-03-18 | 2000-09-05 | Weatherford/Lamb, Inc. | Wellbore milling method |
FR2880565A1 (en) * | 2005-01-07 | 2006-07-14 | M B H Dev Sarl | Diamond-tipped drill bit for drilling machines has head with hemispherical recess and inner V-section groove for lubricating fluid delivered through inner channel |
-
1958
- 1958-06-06 GB GB1821458A patent/GB898004A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3318400A (en) * | 1965-03-31 | 1967-05-09 | Exxon Production Research Co | Hollow crown diamond bit |
US4854788A (en) * | 1987-04-21 | 1989-08-08 | Nikken Tool Co., Ltd. | Drill |
US6112812A (en) * | 1994-03-18 | 2000-09-05 | Weatherford/Lamb, Inc. | Wellbore milling method |
WO1997027380A2 (en) * | 1996-01-24 | 1997-07-31 | Weatherford/Lamb, Inc. | Method for forming a window in a tubular and apparatus for use in said method |
US6024168A (en) | 1996-01-24 | 2000-02-15 | Weatherford/Lamb, Inc. | Wellborne mills & methods |
WO1997027380A3 (en) * | 1996-01-24 | 2001-09-13 | Weatherford Lamb | Method for forming a window in a tubular and apparatus for use in said method |
EP1338754A2 (en) * | 1996-01-24 | 2003-08-27 | Weatherford/Lamb, Inc. | Method for forming a window in a tubular and apparatus for use in said method |
EP1338754A3 (en) * | 1996-01-24 | 2003-12-03 | Weatherford/Lamb, Inc. | Method for forming a window in a tubular and apparatus for use in said method |
FR2880565A1 (en) * | 2005-01-07 | 2006-07-14 | M B H Dev Sarl | Diamond-tipped drill bit for drilling machines has head with hemispherical recess and inner V-section groove for lubricating fluid delivered through inner channel |
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