NO871037D0 - Bit. - Google Patents
Bit.Info
- Publication number
- NO871037D0 NO871037D0 NO871037A NO871037A NO871037D0 NO 871037 D0 NO871037 D0 NO 871037D0 NO 871037 A NO871037 A NO 871037A NO 871037 A NO871037 A NO 871037A NO 871037 D0 NO871037 D0 NO 871037D0
- Authority
- NO
- Norway
- Prior art keywords
- bit
- Prior art date
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
- 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
- E21B10/5673—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a non planar or non circular cutting face
-
- 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
-
- 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
-
- 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83943486A | 1986-03-13 | 1986-03-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO871037D0 true NO871037D0 (en) | 1987-03-13 |
NO871037L NO871037L (en) | 1987-09-14 |
Family
ID=25279716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO871037A NO871037L (en) | 1986-03-13 | 1987-03-13 | Bit. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0237359A3 (en) |
AU (1) | AU590826B2 (en) |
BR (1) | BR8701601A (en) |
CA (1) | CA1260923A (en) |
MX (1) | MX161103A (en) |
NO (1) | NO871037L (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4846290A (en) * | 1986-03-13 | 1989-07-11 | Smith International, Inc. | Underreamer with revolving diamond cutter elements |
EP0370199A1 (en) * | 1988-10-25 | 1990-05-30 | General Electric Company | Drill bits utilizing polycrystalline diamond grit |
DE9206657U1 (en) * | 1992-05-15 | 1993-09-16 | Toepfer Rainer | Rotary tool with carbide inserts |
DE784733T1 (en) * | 1994-10-14 | 1998-01-02 | Kennametal Inc | CONCAVE CUTTING CHISEL |
US5678645A (en) * | 1995-11-13 | 1997-10-21 | Baker Hughes Incorporated | Mechanically locked cutters and nozzles |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1533286A (en) * | 1924-06-09 | 1925-04-14 | Harry P Wickersham | Well-drilling bit |
US3830321A (en) * | 1973-02-20 | 1974-08-20 | Kennametal Inc | Excavating tool and a bit for use therewith |
GB1584752A (en) * | 1977-05-25 | 1981-02-18 | Transport Secretary Of State F | Rock cutting tools |
US4253533A (en) * | 1979-11-05 | 1981-03-03 | Smith International, Inc. | Variable wear pad for crossflow drag bit |
US4448269A (en) * | 1981-10-27 | 1984-05-15 | Hitachi Construction Machinery Co., Ltd. | Cutter head for pit-boring machine |
CA1216158A (en) * | 1981-11-09 | 1987-01-06 | Akio Hara | Composite compact component and a process for the production of the same |
NO830532L (en) * | 1982-02-20 | 1983-08-22 | Nl Industries Inc | Bit. |
GB8428829D0 (en) * | 1984-11-15 | 1984-12-27 | Brown K M | Drill bit |
-
1987
- 1987-03-13 AU AU69985/87A patent/AU590826B2/en not_active Ceased
- 1987-03-13 BR BR8701601A patent/BR8701601A/en unknown
- 1987-03-13 NO NO871037A patent/NO871037L/en unknown
- 1987-03-13 EP EP87302180A patent/EP0237359A3/en not_active Withdrawn
- 1987-03-13 CA CA000531987A patent/CA1260923A/en not_active Expired
- 1987-03-13 MX MX875580A patent/MX161103A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO871037L (en) | 1987-09-14 |
EP0237359A3 (en) | 1988-11-23 |
BR8701601A (en) | 1988-01-12 |
AU590826B2 (en) | 1989-11-16 |
EP0237359A2 (en) | 1987-09-16 |
MX161103A (en) | 1990-07-31 |
CA1260923A (en) | 1989-09-26 |
AU6998587A (en) | 1987-09-17 |
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