NO910866L - Bit. - Google Patents
Bit.Info
- Publication number
- NO910866L NO910866L NO91910866A NO910866A NO910866L NO 910866 L NO910866 L NO 910866L NO 91910866 A NO91910866 A NO 91910866A NO 910866 A NO910866 A NO 910866A NO 910866 L NO910866 L NO 910866L
- Authority
- NO
- Norway
- Prior art keywords
- bit
- 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
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- 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
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
- E21B10/485—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type with inserts in form of chisels, blades or the like
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)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US49004190A | 1990-03-06 | 1990-03-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO910866D0 NO910866D0 (en) | 1991-03-05 |
NO910866L true NO910866L (en) | 1991-09-09 |
Family
ID=23946370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO91910866A NO910866L (en) | 1990-03-06 | 1991-03-05 | Bit. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0446765B1 (en) |
AU (1) | AU640749B2 (en) |
CA (1) | CA2037480A1 (en) |
DE (1) | DE69109160T2 (en) |
NO (1) | NO910866L (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6883624B2 (en) | 2003-01-31 | 2005-04-26 | Smith International, Inc. | Multi-lobed cutter element for drill bit |
US6929079B2 (en) | 2003-02-21 | 2005-08-16 | Smith International, Inc. | Drill bit cutter element having multiple cusps |
US7690442B2 (en) | 2005-05-17 | 2010-04-06 | Smith International, Inc. | Drill bit and cutting inserts for hard/abrasive formations |
US7757789B2 (en) | 2005-06-21 | 2010-07-20 | Smith International, Inc. | Drill bit and insert having bladed interface between substrate and coating |
US7743855B2 (en) | 2006-09-05 | 2010-06-29 | Smith International, Inc. | Drill bit with cutter element having multifaceted, slanted top cutting surface |
US7686106B2 (en) | 2007-01-03 | 2010-03-30 | Smith International, Inc. | Rock bit and inserts with wear relief grooves |
US7631709B2 (en) | 2007-01-03 | 2009-12-15 | Smith International, Inc. | Drill bit and cutter element having chisel crest with protruding pilot portion |
US8205692B2 (en) | 2007-01-03 | 2012-06-26 | Smith International, Inc. | Rock bit and inserts with a chisel crest having a broadened region |
US7798258B2 (en) | 2007-01-03 | 2010-09-21 | Smith International, Inc. | Drill bit with cutter element having crossing chisel crests |
US8607899B2 (en) | 2011-02-18 | 2013-12-17 | National Oilwell Varco, L.P. | Rock bit and cutter teeth geometries |
US20140182947A1 (en) | 2012-12-28 | 2014-07-03 | Smith International, Inc. | Cutting insert for percussion drill bit |
US20150259985A1 (en) * | 2014-03-11 | 2015-09-17 | Varel International Ind., L.P. | Short matrix drill bits and methodologies for manufacturing short matrix drill bits |
WO2017123562A1 (en) | 2016-01-13 | 2017-07-20 | Schlumberger Technology Corporation | Angled chisel insert |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0233851B1 (en) * | 1986-02-19 | 1990-11-28 | Strata Bit Corporation | Cutting element comprising a composite brazed to a stud |
-
1991
- 1991-03-04 CA CA002037480A patent/CA2037480A1/en not_active Abandoned
- 1991-03-05 NO NO91910866A patent/NO910866L/en unknown
- 1991-03-05 DE DE69109160T patent/DE69109160T2/en not_active Expired - Fee Related
- 1991-03-05 EP EP91103334A patent/EP0446765B1/en not_active Expired - Lifetime
- 1991-03-05 AU AU72617/91A patent/AU640749B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU640749B2 (en) | 1993-09-02 |
AU7261791A (en) | 1991-09-12 |
CA2037480A1 (en) | 1991-09-07 |
EP0446765B1 (en) | 1995-04-26 |
DE69109160D1 (en) | 1995-06-01 |
EP0446765A1 (en) | 1991-09-18 |
DE69109160T2 (en) | 1995-08-31 |
NO910866D0 (en) | 1991-03-05 |
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