NO873803L - Anordning ved borkroner. - Google Patents
Anordning ved borkroner.Info
- Publication number
- NO873803L NO873803L NO873803A NO873803A NO873803L NO 873803 L NO873803 L NO 873803L NO 873803 A NO873803 A NO 873803A NO 873803 A NO873803 A NO 873803A NO 873803 L NO873803 L NO 873803L
- Authority
- NO
- Norway
- Prior art keywords
- chronicles
- drill
- drill chronicles
- Prior art date
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
- E21B10/5671—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts with chip breaking arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Milling Processes (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US90616986A | 1986-09-11 | 1986-09-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO873803D0 NO873803D0 (no) | 1987-09-11 |
NO873803L true NO873803L (no) | 1988-03-14 |
Family
ID=25422035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO873803A NO873803L (no) | 1986-09-11 | 1987-09-11 | Anordning ved borkroner. |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP0452999A3 (de) |
JP (1) | JPS63134782A (de) |
CA (1) | CA1295321C (de) |
DE (1) | DE3781226T2 (de) |
NO (1) | NO873803L (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5172778A (en) * | 1991-11-14 | 1992-12-22 | Baker-Hughes, Inc. | Drill bit cutter and method for reducing pressure loading of cutters |
US5265685A (en) * | 1991-12-30 | 1993-11-30 | Dresser Industries, Inc. | Drill bit with improved insert cutter pattern |
JPH0576584U (ja) * | 1992-03-26 | 1993-10-19 | アロン化成株式会社 | 曲管清掃具 |
US5592996A (en) * | 1994-10-03 | 1997-01-14 | Smith International, Inc. | Drill bit having improved cutting structure with varying diamond density |
JP2007118501A (ja) * | 2005-10-31 | 2007-05-17 | Tosei Kensetsu Kk | 穿孔ビット装置及び穿孔機 |
WO2011146752A2 (en) | 2010-05-20 | 2011-11-24 | Baker Hughes Incorporated | Methods of forming at least a portion of earth-boring tools, and articles formed by such methods |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4098363A (en) * | 1977-04-25 | 1978-07-04 | Christensen, Inc. | Diamond drilling bit for soft and medium hard formations |
US4303136A (en) * | 1979-05-04 | 1981-12-01 | Smith International, Inc. | Fluid passage formed by diamond insert studs for drag bits |
DE3039633C2 (de) * | 1980-10-21 | 1983-08-18 | Christensen, Inc., 84115 Salt Lake City, Utah | Drehbohrmeißel, insbesondere für Tiefbohrungen |
EP0182770A1 (de) * | 1984-11-12 | 1986-05-28 | DIAMANT BOART Société Anonyme | Diamantbohrmeissel |
-
1987
- 1987-09-02 JP JP62218065A patent/JPS63134782A/ja active Pending
- 1987-09-10 EP EP19910111602 patent/EP0452999A3/en not_active Withdrawn
- 1987-09-10 CA CA000546521A patent/CA1295321C/en not_active Expired - Lifetime
- 1987-09-10 EP EP87113231A patent/EP0259872B1/de not_active Expired - Lifetime
- 1987-09-10 DE DE8787113231T patent/DE3781226T2/de not_active Expired - Fee Related
- 1987-09-11 NO NO873803A patent/NO873803L/no unknown
Also Published As
Publication number | Publication date |
---|---|
EP0259872B1 (de) | 1992-08-19 |
EP0452999A2 (de) | 1991-10-23 |
NO873803D0 (no) | 1987-09-11 |
DE3781226D1 (de) | 1992-09-24 |
DE3781226T2 (de) | 1993-03-25 |
EP0259872A3 (en) | 1989-10-25 |
EP0259872A2 (de) | 1988-03-16 |
EP0452999A3 (en) | 1992-03-11 |
CA1295321C (en) | 1992-02-04 |
JPS63134782A (ja) | 1988-06-07 |
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