EP0326176A3 - Trépan rotatif renforcé - Google Patents
Trépan rotatif renforcé Download PDFInfo
- Publication number
- EP0326176A3 EP0326176A3 EP89101527A EP89101527A EP0326176A3 EP 0326176 A3 EP0326176 A3 EP 0326176A3 EP 89101527 A EP89101527 A EP 89101527A EP 89101527 A EP89101527 A EP 89101527A EP 0326176 A3 EP0326176 A3 EP 0326176A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- bit
- drill bit
- rotary drill
- protrusion
- main body
- 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.)
- Withdrawn
Links
- 239000011159 matrix material Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 230000003014 reinforcing 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
- E21B10/56—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)
- Excavating Of Shafts Or Tunnels (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14937488A | 1988-01-28 | 1988-01-28 | |
US149374 | 1988-01-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0326176A2 EP0326176A2 (fr) | 1989-08-02 |
EP0326176A3 true EP0326176A3 (fr) | 1990-03-21 |
Family
ID=22529996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89101527A Withdrawn EP0326176A3 (fr) | 1988-01-28 | 1989-01-30 | Trépan rotatif renforcé |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0326176A3 (fr) |
AU (1) | AU612224B2 (fr) |
CA (1) | CA1314866C (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU612224B2 (en) * | 1988-01-28 | 1991-07-04 | Norton Christensen Inc. | Reinforced rotary drill bit |
US5007493A (en) * | 1990-02-23 | 1991-04-16 | Dresser Industries, Inc. | Drill bit having improved cutting element retention system |
US5213171A (en) * | 1991-09-23 | 1993-05-25 | Smith International, Inc. | Diamond drag bit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0032428A1 (fr) * | 1980-01-10 | 1981-07-22 | Stonehouse U.K. Limited | Trépan pour forage rotary |
EP0145421A2 (fr) * | 1983-12-03 | 1985-06-19 | Reed Tool Company Limited | Fabrication de trépans de forage rotatifs |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4397361A (en) * | 1981-06-01 | 1983-08-09 | Dresser Industries, Inc. | Abradable cutter protection |
DE3751672T2 (de) * | 1986-10-06 | 1996-05-30 | De Beers Ind Diamond | Schneidelement |
AU612224B2 (en) * | 1988-01-28 | 1991-07-04 | Norton Christensen Inc. | Reinforced rotary drill bit |
-
1989
- 1989-01-27 AU AU28875/89A patent/AU612224B2/en not_active Expired - Fee Related
- 1989-01-27 CA CA000589326A patent/CA1314866C/fr not_active Expired - Fee Related
- 1989-01-30 EP EP89101527A patent/EP0326176A3/fr not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0032428A1 (fr) * | 1980-01-10 | 1981-07-22 | Stonehouse U.K. Limited | Trépan pour forage rotary |
EP0145421A2 (fr) * | 1983-12-03 | 1985-06-19 | Reed Tool Company Limited | Fabrication de trépans de forage rotatifs |
Also Published As
Publication number | Publication date |
---|---|
AU612224B2 (en) | 1991-07-04 |
AU2887589A (en) | 1989-08-03 |
CA1314866C (fr) | 1993-03-23 |
EP0326176A2 (fr) | 1989-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
RBV | Designated contracting states (corrected) |
Designated state(s): BE DE FR GB NL |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): BE DE FR GB NL |
|
17P | Request for examination filed |
Effective date: 19900623 |
|
17Q | First examination report despatched |
Effective date: 19911021 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19940317 |