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AU7261791A - Drill bit cutting array having discontinuities therein - Google Patents

Drill bit cutting array having discontinuities therein

Info

Publication number
AU7261791A
AU7261791A AU72617/91A AU7261791A AU7261791A AU 7261791 A AU7261791 A AU 7261791A AU 72617/91 A AU72617/91 A AU 72617/91A AU 7261791 A AU7261791 A AU 7261791A AU 7261791 A AU7261791 A AU 7261791A
Authority
AU
Australia
Prior art keywords
discontinuities
drill bit
bit cutting
cutting array
array
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.)
Granted
Application number
AU72617/91A
Other versions
AU640749B2 (en
Inventor
Jacob Chow
Ralph M. Horton
Mark L. Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Abrasives Inc
Original Assignee
Norton Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Norton Co filed Critical Norton Co
Publication of AU7261791A publication Critical patent/AU7261791A/en
Application granted granted Critical
Publication of AU640749B2 publication Critical patent/AU640749B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
AU72617/91A 1990-03-06 1991-03-05 Drill bit cutting array having discontinuities therein Expired - Fee Related AU640749B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49004190A 1990-03-06 1990-03-06
US490041 1990-03-06

Publications (2)

Publication Number Publication Date
AU7261791A true AU7261791A (en) 1991-09-12
AU640749B2 AU640749B2 (en) 1993-09-02

Family

ID=23946370

Family Applications (1)

Application Number Title Priority Date Filing Date
AU72617/91A Expired - Fee Related AU640749B2 (en) 1990-03-06 1991-03-05 Drill bit cutting array having discontinuities therein

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6929079B2 (en) 2003-02-21 2005-08-16 Smith International, Inc. Drill bit cutter element having multiple cusps
US6883624B2 (en) 2003-01-31 2005-04-26 Smith International, Inc. Multi-lobed cutter element for drill bit
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
US7798258B2 (en) 2007-01-03 2010-09-21 Smith International, Inc. Drill bit with cutter element having crossing chisel crests
US8205692B2 (en) 2007-01-03 2012-06-26 Smith International, Inc. Rock bit and inserts with a chisel crest having a broadened region
US7631709B2 (en) 2007-01-03 2009-12-15 Smith International, Inc. Drill bit and cutter element having chisel crest with protruding pilot portion
US7686106B2 (en) 2007-01-03 2010-03-30 Smith International, Inc. Rock bit and inserts with wear relief grooves
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
WO2015171199A1 (en) * 2014-03-11 2015-11-12 Varel International Ind., L.P. Short matrix drill bits and methodologies for manufacturing short matrix drill bits
CN108474239A (en) 2016-01-13 2018-08-31 斯伦贝谢技术有限公司 Angled chisel insertion piece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE69109160T2 (en) 1995-08-31
NO910866L (en) 1991-09-09
EP0446765B1 (en) 1995-04-26
AU640749B2 (en) 1993-09-02
DE69109160D1 (en) 1995-06-01
EP0446765A1 (en) 1991-09-18
NO910866D0 (en) 1991-03-05
CA2037480A1 (en) 1991-09-07

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